外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

Unit 1

1. The safari hunter was nearly _____ to death by a herd of elephants.

A. stampeded B. trampled

C. trod D. stamped

2. She felt that she was too ______ with problems to be able to study properly.

A. burdened B. tired

C. grieved D. disturbed

3 The roof ______ under the weight of the snow.

A. fell B. submerged

C. collapsed D. descended

4. Juvenile _______ is becoming a very difficult problem for society to overcome.

A. negligence B. crime

C. delinquency D. offence

5. The current spirit of _____ among the various departments of the university have led to a number of interdisciplinary publications which might not otherwise have been written.

A. competition B. patriotism

C. cooperation D. futility

6. Ben derived a lot of ______ from his boss’s apology.

A. comfort B. ease

C. gratification D. Satisfaction

7. His criticism injured Jenny’s ______. So she is feeling sad now.

A. divinity B. indignity

C. ego D. mind

8. Hundreds of people ______ on the playground for watching the Dragon Lantern Show.

A. contrived B. conformed

C. conferred D. converged

9. Beware of the cream on the floor. An elderly lady ______ and fell down there just not.

A. spilled B. slipped

C. slid D. Split

10. She had been educated in England, which accounted for her ______ in the English language.

A. efficiency B. proficiency

C. effectiveness D. effectuality

11. A sweet smile is a figurative expression, but sweet coffee is a ______ one.

A. literal B. literary

C. literate D. illiterate

12. I missed the last bus. I could do nothing but ______ in the village for the night.

A. staying B. stayed

C. to stay D. stay

13. International football matches do not always make ______ better understanding

between countries.

A. up B. for

C. into D. out

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

14. Cambridge can look very attractive ______ of year.

A. at the same time B. at one time

C. at this time D. at times

15.There is a real possibility that these animals could be frightened, ______ a sudden

loud noise.

A. being there B. should there be

C. there D. there having been

16. ______ for the timely investment form the general public, our company would not be

so thriving as it is.

A. Had it not been B. Were it not

C. Be it not D. Should it not be

17. According to one belief, if truth is to be known it will make itself apparent, so one

______ wait instead of searching for it.

A. would rather B. had to

C. cannot but D. had best

18. The school board listened quietly as John read the demands that his followers ______

for.

A. be demonstrating B. demonstrate

C. had been demonstrating D. have demonstrated

19. We are taught that a business letter should be written in a formal style ______ in a

personal one.

A. rather than B. other than

C. better than D. less than

20. The business of each day, ______ selling goods or shipping them, went quite

smoothly.

A. it being B. be it C. was it D. it was

Key:1-5DACCC 6-10DCDBB 11-15AD(C)BCB 16-20ADCAB

Unit 2

1. Her jewelry _______ under the spotlights and she became the dominant figure at the

ball.

A. blazed B. dazzled

C. glared D. glittered

2. Weeks ______ before anyone was arrested in connection with the bank robbery.

A. elapsed B. expired

C. overlapped D. terminated

3. Often such arguments have the effect of _____ rather than clarifying the issues

involved.

A. blocking B. obscuring

C. tackling D. prejudicing

4. He raised his eyebrows and stuck his head forward and _______ it in a single nod, a

gesture boys used then for O.K. when they were pleased.

A. jerked B. twisted

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

C. shrugged D. Tugged

5. She had recently left a job and had helped herself to copies of the company’s client data,

which she intended to ______ in starting her own business.

A. dwell on B. base on

C. draw upon D. come upon

6. I can’t give you that for nothing. What do you take me _____ ?

A. up B. For C. to D. After

7. Let me _____ the broken glass before someone walks on it.

A. cover up B. clear up

C. wash up D. spring up

8. If you keep in mind the process of word deviation, you’ll be able to _____ the meaning

of many words.

A. reason with B. make up

C. count on D. figure out

9. Scientists will have to come _____ new methods of increasing the world’s food supply.

A. up with B. up fo C. down with D. down to

10..A thought ______ me that we ought to make a new arrangement.

A. occurred B. struck

C. turned to D. struck to

11. _____ in a recent science competition, three individuals were awarded scholarships

totaling 36,000.

A. Judged the best B. Judging for the best

C. Judging the best D. Having judged the best

12. You never told us why you were late for the last meeting, _____?

A. weren't you B. didn’t you

C. had you D. did you

13. He has ______ that it is difficult for him to travel.

A. too heavy a work load B. a too heavy work load

C. so heavy a work load D. such heavy a work load

14. ______ I’ll marry him all the same.

A. Whether he being rich or poor B. He be rich or poor

C. He being rich or poor D. Be he rich or poor

15. If that idea was wrong, the project is bound to fail, _____ good all the other ideas

might be.

A. whatever B. though

C. whatsoever D. however

16. The less the surface of the ground yields to the weight of the body of a runner, ____ to

the body.

A. the greater the stress B. the stress is greater

C. greater the stress is D. greater is the stress

17. —Could you give this book to Mr. Chen?

—Certainly, ______ him about something else in any case, so it won’t be any bother at

all.

A. I’ll see B. I see C. I can see D. I’ll be seeing

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

18. _____ their assistance, we would be in serious difficulty.

A. If it is not for B. Be it not for

C. It being not for D. Were it not for

19. Some days go by much more quickly than others. Some hours as if they _____.

A. would never end B. should never end

C. will never end D. might never end

20. When she arrived, she found _____ the aged and the sick at home.

A. none but B. nothing but

C. none other D. no other than

KEY:1-5DADAC 6-10BBDAB 11-15ADCBD 16-20 ADDAA

UNIT 3

1. In my opinion, you can widen the _____ of these improvements through

your active participation.

A. dimension B. magnitude

C. volume D. scope

2. The tourist is forbidden to enter a country if he does not have a(n) _____ passport.

A. operative B. effective

C. valid D. Efficient

3. Gone with the Wind deals with questions__________America’s Civil war and the

experiences of two couples of lovers.

A. concerned B. concerned with

C. concerning with D. concerning

4. She was very interested in the work of certain charities, and made a_______ regular to them.

A. subscription B. contribution

C. allowance D. Tribute

5. Anthropology is a science _____ anthropologist use a rigorous set of methods and

techniques to document observations that can be checked by others.

A. in that B. that in

C. that D. in

6. People under the age of 18 are not___________to join the club.

A. capable B. legitimate

C. available D. Eligible

7. Essentially, a theory is an abstract symbolic representation of ___________reality.

A. what it is conceived

B. that is conceived

C. that is being conceived

D. what is conceived to be

8. Although some students graduate from high school, they are virtually illiterate writing a business letter.

A. in the event of B. in the light of

C. in case of D. in terms of

9. Sometimes the tension produced by fears is so great that we cannot suppress it. At

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

such times we need to the tension by laughing or crying.

A. discard B. disperse

C. disguise D. discharge

10. We are all agreed that the plan is practical and feasible, but he thinks .

A. not B. the reverse

C. contrarily D. Otherwise

11. Go and ask his wife. She must be__________ the know.

A. in B. for

C. at D. under

12. She knew that she was__________against very strong opposition.

A. at B. up

D. with D. On

13.Until the 1800s, communication had been _____ by distance and time.

A. curbed B. inhibited

C. limited D. restricted

14. This car is cheaper to buy _____ the other one is more economical to run.

A. although B. since

C. than D. whereas

15. The score is 3 to 2 in their favor. This is not _____ result as we expected.

A. a bad B. as a bad

C. bad a D. as bad a

16.Hardly a day goes by _____ I write to my family.

A. when B. since

C. but D. Before

17. The old man strolled to the beach, _____.

A. his dog following him

B. his dog followed him

C. his dog was followed

D. following by his dog

18. I don’t believe your dad is over fifty. He looks _____ forty.

A. no older than B. not older than

C. no older as D. none older as

19. The Prime Minister walked onto the platform and seated herself in a chair, _____ to answer questions.

A. had prepared B. being prepared

C. prepared D. preparing

20. There can be no economy _____ there is no efficiency.

A. unless B. where

C. provided that D. Because

KEY:1-5 DCDBA 6-10DDDDD 11-15 ABDDD 16-20 CAACB

UNIT 4

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

1.The discussion was so prolonged and exhausting that ___ the speakers stopped for refreshments.

a. at large b. at ease

c. at intervals d. at random

2. This kind of material can ____ heat and moisture.

a. propel b. repel

c. compel d. Constrain

3. Hamlet ___ his father’s death on his uncle.

a. reversed b. revenged

c. reverted d. averted

4. In a sense, tennis and Taijiquan are similar in that they both require your full attention, and if done ____, take your mind off daily problems and preoccupations.

a. successfully b. consecutively

c. conscientiously d. compulsively

5. Strict ____ is observed in connection with depositors’ accounts.

a. section b. security

c. secrecy d. segregation

6. The remarkable ___ of life on the Galapagos Islands inspired Charles Darwin to establish his theory of evolution.

a. classification b. density

c. variety d. Diversion

7. The owner of a car is no longer forced to rely on public transportation and is therefore, not ____ to work locally.

a. compelled b. obliged

c. restricted d. repelled

8. The doctors don’t ____ that the patient will live much longer.

a. monitor b. manifest

c. articulate d. Anticipate

9. She should be ___ and not make unreasonable

demands.

a. sensational b. sensible

c. sensitive d. sensual

10. Europe’s earlier industrial growth was ____ by the availability of key resources, abundant and cheap labor, coal, iron ore, etc.

a. constrained b. remained

c. sustained d. detained

11. His kindness was ___ that we will never forget him.

a. what b. which

c. who d. such

12. I walked too much yesterday and ___ are still aching now.

a. my leg’s muscles b. my muscles of leg

c. my leg muscles d. my muscles of the leg

13. I think the Red Team will win the final game; it’s ____ that they will.

a. almost surely b. very likely

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

c. rather possibly d. quite certainly

14. Fond of singing as she is, she is ____ a good singer by profession.

a. everything but b. anything but

c. nothing but d. something but

15. I didn’t go to his party last night, because ____ I changed my mind.

a. on a second thought b. on second thought

c. by second thought d. on the second thought

16. We left the meeting, there obviously ____ no point in staying.

a. were b. to be

c. being d. Having

17. The manager would rather his daughter ____ in the same office.

a. had not worked b. not to work

c. does not work d. did not work

18. I’d rather read than watch television, the programs seem ____ all the time.

a. to get worse b. getting worse

c. to have got worse d. to be getting worse

19. Many a student and teacher ___ making a careful study of ___ own problems.

a. are; their b. is; their

c. are; his d. is; his

20. It is not unusual for workers ____ in that region.

a. to be paid more than a month late

b. to be paid later than more a month

c. to pay later than a month more

d. to pay late more than a month

KEY:1-5CBBCC 6-10CCDBC 11-15DCBBB 16-20CDDDA

UNIT 5

1.Only ten to twenty percent of cold viruses are transmitted by carriers, who, sneezing and coughing, ___ the viruses into the air.

a. spray b. sprinkle

c. spread d. sprout

2. While taking a walk to the department store, I____ an old schoolmate this morning. a. ran over b. ran off

c. ran into d. ran to

3. Mr. Brown’s condition looks very serious and it is doubtful if he will ______.

a.pull back b. pull up

c.pull through d. pull out

4. A scientist usually directs his attention towards problems which he notices have no satisfactory explanation, and his curiosity makes him look for ____ relationship even if the data available seem to be unconnected.

a. underlining b.underneath

c. underlying d. Undergoing

5. Because of the mistake made in his work, he has been obliged to ____ from his job.

a. resign b. dismiss

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

c. abandon d. retire

6. You’d better ask professor Smith—he has got the whole subject ______.

a. at the fingers b. at his fingers

c. at his fingers’ tips d. at the fingers’ tips

7. The tenant left nothing being except some____ of paper, cloth, etc.

a. sheets b. scraps

c. pages d. Slices

8. The majority of nurses are women, but in the higher ranks of the medical profession women are in a ______.

a. minority b. scarcity

c. rarity d. minimum

9. I couldn’t sleep because the tap in the bathroom was _________.

a. draining b. dropping

c. spilling d. dripping

10. Failure to follow the club rules ________ him

from the volleyball team.

a. disfavored b. dispelled

c. disqualified d. Dismissed

11. Because one is grown up, _____ he/she can become more intelligent.

a. but it isn’t that

b. but it can’t follow that

c. it is not followed that

d. it does not follow that

12. Do help yourself to some fruit, _____ you? (TEM4-2000)

a. can’t b. don’t

c. wouldn’t d. won’t

13. Wait for me. You _____ impatient. I am still having my breakfast.

a. are b. are being c. were d. have been

14. You and I could hardly understand, _____?(TEM4-1995)

a. could I b. couldn’t you

c. couldn’t we d. could we

15. I wish to pay you a visit tomorrow, _____?

a. shall I b. didn’t I c. may I d. would I

16. She ought to go to Shanghai by plane, _____?

a. ought she b. shouldn’t she

c. won’t she d. wouldn’t she

17. I’m surely happy, _____?

a. am I b. isn’t I

c. aren’t I d. am not I

18. Very important in our daily life _____.

a. is the weather forecast

b. the weather forecast is

c. the weather is forecasted

d. forecasts the weather

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

19. Cars moved very slowly in the 1920s, but they ____ move more quickly than in a. were to b. did c. will d. can

20. To say is one thing, and to do is quite _____.

a. one other b. the other c. another d. something else KEY:1-5ACCCA 6-10CBADC 11-15 DDBDC 16-20 BCABC

UNIT 6

1. I only know the man by ___ but I have never spoken to him.

A. chance B. heart

C. sight D. experience

2. Being colour-blind, Sally can’t make a _____ between red and green.

A. difference B. distinction

C. comparison D. Division

3. You must insist that students give a truthful answer ___ with the reality of their world.

A. relevant B. simultaneous

C. consistent D. practical

4. In order to raise money, Aunt Nicola had to ___ with some of her most treasured possessions.

A. divide B. separate

C. part D. Abandon

5. The car was in good working ___ when I bought it a few months ago.

A. order B. form

C. state D. circumstance 

6. The customer expressed her ___ for that broad hat.

A. disapproval B. distaste

C. dissatisfaction D. Dismay

7. In order to repair barns, build fence, grow crops, and care for animals a farmer must indeed be ___.

A. restless C. strong

B. skilled D. versatile

8. His expenditure on holidays and luxuries is rather high in ___ to his income.

A. comparison B. proportion

C. association D. Calculation

9. Although he has become rich, he is still very ___ of his money.

A. economic B. thrifty

C. frugal D. careful

10. As the manager was away on a business trip, I was asked to ___ the weekly staff meeting.

A. preside B. Introduce C. chair D. Dominate

11. Basically a robot is a machine which moves, manipulates, joins or processes ____ in the same way as human hand or arm.

A. characters B. components

C. catalogues D. collections

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

12. Of course, talking about something which affects them personally is ____ motivating for students.

A. chiefly B. correctly

C. currently D. eminently

13. Most importantly, such an experience helps ____ a heightened sensitivity to other cultures and will bring about a greater appreciation of one’s own culture as well.

A. coach B. forsake

C. foster D. censor

14. When Ann broke the dish she tried to put the ____ back together.

A. fragments B. pieces

C. bits D. slices

15. ____ drills that have no real topic have to remain as they are.

A. Manufacture B. Manipulative

C. Manipulate D. Manifest

16. This book has been in the works so long that I have lost ____ of most of the sources found for me by the staff of the library.

A. trace B. trail

C. track D. touch

17. The audience waited in ____ silence while their aged speaker searched among his note for the figures he could not remember.

A. respective B. respect

C. respectful D. respectable

18. The disappearance of her paper has never been ____ .

A. counted for B. looked up 

C. accounted for D. checked up

17. The audience waited in ____ silence while their aged speaker searched among his note for the figures he could not remember.

A. respective B. respect

C. respectful D. respectable

18. The disappearance of her paper has never been ____ .

A. counted for B. looked up 

C. accounted for D. checked up

KEY:1-5CBCCA 6-10BDBCC 11-15BDCAB 16-20CCCBD

Unit 8

1. ______ at conveying her underlying message through topical plots and contemporary characters that by 1940 her book had sold some three million copies.

a.So successful, Grace Lee

b. So successful was Grace Lee

c. Grace Lee, so successful

d. Because Grace Lee was so successful

2. We must urge that delegates ______ from the various factories in a district.

a.should elect b. will be elected

c. be elected d. must have been elected

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

3. It wasn’t such a good dinner ______ she had promised.

a.that b. as

c. which d. what

4. By the end of this month, we surely ______ a satisfactory solution to the problem. a.have found b. will have found

c. will find d. will be finding

5. The doctor insisted that his patient ______ the medicine.

a. take b. takes

c. to take d. taking

6. ______ they will not come to join us, we have to change our plan.

a.Seeing that b. for

c. When d. As soon as

7. Since the family moved here last year, they ______ better health.

a.were enjoying b. had enjoyed

c. have been enjoying d. enjoyed

8. Living in the Central Australian desert has its problems, ______ obtaining watering is not the least.

a. of which b. for what

c. as d. Whose

9. The heart is ______ intelligent than the stomach, for they are both controlled by the brain.

a.not so b. not much

c. much more d. no more

10. The millions of calculations involved, had they been done by hand, ______ all practical value by the time they were finished.

a.could lose b. would have lost

c. might lose d. ought to have lost

11. ______ to deliver this letter to the secretary?

a.Would you be so kind

b. Would you be so kind as

c. Would you be as kind as

d. Would you be kind

12. Having no money but ______ to know, Tom simply said he would go without dinner. a.not to want anyone

b. not wanting anyone

c. wanted no one

d. to want no one

13. It isn’t cold enough for there ______ a frost night, so I can leave Jim’s car out quite safely.

a.would be b. being

c. was d. to be

14. A hundred and thirty dollars ______ for that fur coat.

a.is a reasonable price

b. are a reasonable price

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

c. are not a reasonable price

d. is a too reasonable price

15. Mrs. Brown is supposed ______ for Italy last week.

a.to have left b. to be leaving

c. to have been left d. to leave

16. It seems absurd to wait any longer for those materials. We ______ start the project without them.

a. as well b. just as well

c. may as well d. well off

17. Frankly speaking, I’d rather you ______ anything about it for the time being. a.do b. don’t do

c. did d. didn’t do

18. The professor can hardly find sufficient grounds ______ his argument in favor of the new theory.

a.which to base on

b. to base on which

c. on which to base

d. which to be based on

19. Hydrogen is the fundamental element of universe ______ it provides the building blocks from which the other elements are produced.

a.so that b. but that

c. in that d. provided that

20. We are taught that a business letter should be written in a formal style ______ in a personal one.

a. rather than b. other than

c. better than d. less than

Key:1-5bcbba 6-10acadb 11-15bbdaa 16-20cdcca

Unit 9

1. Knowing that he had been admitted to Cambridge University, he was too excited to be _______ on the phone.

a. coincidental b. identical

c. same d. coherent

2. Hard work and malnutrition _______ his health and he looked thin and pale. a. impaired b. promoted

c. accelerated d. Smashed

3. Although he is in his fifties, his _______ arms are as powerful as those of a young man.

a. energetic b. gigantic

c. muscular d. effective

4. By preliminary _______, the damage caused by the accident amounted to $1,000,000.

a. apprehension b. comprehension

c. proposal d. Appraisal

5. He proposed at the meeting that _______ restrictions should be imposed on the construction of more expensive housing projects.

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

a. grave b. grim

c. rigorous d. reckless

6. The purpose of the lecture was to _______the masses of the United States with the elementary problems of Latin America.

a. inform b. acquaint

c. instruct d. Announce

7. Our teacher didn’t have time so far to go into it_______, but he gave us an idea about his plan.

a. in turn b. at hand

c. in conclusion d. at length

8. She often says her greatest happiness _______serving the handicapped children.

a. consists in b. relies on

c. composes of d. comprises in

9. No one who breaks the law is _______punishment.

a. discrete from b. immune from

c. exceptional to d. invulnerable to

10. Since you changed lanes without signaling, you are as much to _______for the accident as us.

a. condemnation b. charge

c. accusation d. Blame

11. ______is known to the world, Mark Twain is a great American writer.

a. That b. Which

c. As d. It

12. Look at the terrible situation I am in! If only I ______your advice.

a. follow b. had followed

c. would follow d. have followed

13. I remember ______to help us if we ever were in difficulties.

a. once offering b. him once offering

c. him to offer d. to offer him

14. Helen apologized for ______the party.

a. her not being able to attend

b. her being not able to attend

c. her being able not to attend

d. not her being able to attend

15. It’s a pity that we should stay at home when we have ______weather.

a. so fine b. such fine

c. such a fine d. so fine a

16. His proposal is that the machine ______at once.

a. is stopped b. would be stopped

c. be stopped d. is being stopped

17. Without your help, we ______so much.

a. will not achieve

b. didn’t achieve

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

c. don’t achieve

d. would not have achieved

18. The grass has grown a lot this past week. It needs ______.

a. cut b. to be cut

c. that we cut d. to cut

19. It was with great joy ______he received the news that his long—lost son would soon return home.

a. that b. so

c. since d. For

20. Everybody likes to go, ______?

a. aren’t they b. isn’t he

c. don’t they d. doesn’t he

Key:1-5DACDC 6-10BDABD 11-15CBBAB 16-20 CDBAC

UNIT 11

1) Nothing spoils friendship _____an exaggeration

of a friend’s merits.

A. such as B. just like

C. that much like D. so much as

2) By the year 2050, this area will hold twice as

_____ today.

A. much people as it does

B. much people as it is

C. many people as it does

D. many people as it is

3) Nowadays few people can remember _______ radios, and it is difficult to imagine getting along without the benefits of radio technology.

A. not having B. not to have

C. to be without D. been without

4) Heathrow, “the Gateway to the World”, __, is one of the busiest airports in the world.

A. so it is proudly called

B. as it proudly calls itself

C. so proudly be called

D. as it proudly called

5) If there is one main characteristic of the modern world that makes our lives different from ____, it is probably speed.

A. that of our grandparents

B. our grandparent’s

C. those of our grandparents

D. our grandparents

6) If we would build on a sure foundation in friendship, we must love friends for their sake rather than for _____.

A. our own B. our own’s

C. that of us D. those of ours

外研社现代大学英语4精读练习(专升本,本科必用)单元课后选择练习题大多高校考试题目

7) ___ to use a computer will hurt a person’s chances of finding a job as a secretary.

A. Been unable B. To be unable

C. Not able D. Not being able

8) Service in a just cause rewards the worker with more real happiness and satisfaction than ___ venture in life.

A. many other B. any other

C. another D. other’s

9) ___ employees feel about work, their primary motivation to work is to earn a living.

A. Whatever B. What

C. However D. How

10) The increasing use of robots—machines that do the jobs of human beings—will mean ___ jobs for blue-collar workers.

A. few B. much few

C. a few D. Fewer

11) Almost three-fifths of the nation’s income ____ from the tertiary/service industries, ______ commercial and professional services.

A. come, like B. comes, such as

C. is coming, as D. are coming, say

12) Ten percent of the university’s budget _______ capital construction and maintenance.

A. is spent on B. are spent on

C. go in D. goes in

13) Alcoholism is a disease ____ the drinking of alcoholic beverages interferes with some aspects of life.

A. that B. in that

C. which D. in which

14) A great many animals live in ______ water, chiefly because there is much more room for them than on __________ land.

A. /, the B. the, a

C. the, / D. the, the

15) Human beings can eat many different kinds of food, although some eat _____ plant foods and seeds.

A. anything but B. nothing but

C. everything except D. something except

16) Some of the amazing social relationships that exist among animals are dependent on the signals ________ they communicate.

A. by which B. in which

C. whereas D. Wherein

KEY:1-5DCABC 6-10ADBCD 11-15 BADCB 16-20A

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