英语练习题100题

Ⅰ. Vocabulary and Structure

1. If it ______ too much trouble, I'd love a cup of tea.

A. isn't

B. wasn't

C. weren't

D. hadn't been

2. _________ it or not, his discovery had created a stir in scientific circles.

A. Believe

B. Believing

C. To believe

D. Believed

3. Once environmental damage __________, it takes many years for the system to recover.

A. has done

B. is to do

C. does

D. is done

4. Government cannot operate effectively _____ it is free from such interference.

A. so long as

B. so that

C. unless

D. because

5. The fifth generation computers, with artificial intelligence, _______ and perfected now.

A. developed

B. have developed

C. are being developed

D. will have been developed

6. I bought a new house, but I _________ my old one yet, so at the moment I have two houses.

A. didn't sell

B. sold

C. haven't sold

D. would sell

7. Great as Newton was, many of his ideas ___________ today and are being modified by the work of scientists of our time.

A. are to challenge

B. may be challenged

C. have been challenged

D. are challenging

8. It seems oil ___________ from this pipe for some time. We'll have to take the machine apart to put it right.

A. had leaked

B. is leaking

C. leaked

D. has been leaking

9. I decided to go to the library as soon as I _______.

A. finish what I did

B. finished what I did

C. would finish what I was doing

D. finished what I was doing

10. Until then, his family _________ from him for six months.

A. didn't hear

B. hasn't been hearing

C. hasn't heard

D. hadn't heard

11. Mary's score on the test is the highest in her class; she ____ have studied very hard.

A. may

B. should

C. must

D. ought to

12. You _____ her in here office last Friday; she's been out of town for two weeks.

A. needn't have seen

B. must have seen

C. might have seen

D. can't have seen

13. The room is in terrible mess; it _________ cleaned.

A. can't have been

B. shouldn't have been

C. mustn't have been

D. wouldn't have been

14. She was thankful that she'd had her baby in hospital; otherwise, she thought, the baby_____.

A. died

B. had died

C. might have died

D. might die

15. You ______ all those calculations! We have a computer to do that sort of thing.

A. needn't have done

B. shouldn't have done

C. must not have done

D. cannot have done

16. With all this work on hand, he _______ to the cinema last night.

A. mustn't

B. oughtn't to go

C. wouldn't go

D. shouldn't have gone

17. The old couple decided to ________ a boy and a girl though they had three of their own.

A. adapt

B. bring

C. receive

D. adopt

18. I hate people who _________ the end of a film that you haven't seen before.

A. reveal

B. rewrite

C. revise

D. reverse

19. It's a pleasure for him to _______ his energy and even his wife to research work.

A. dedicate

B. dictate

C. decorate

D. direct

20. A completely new situation will ______ when the examination system comes into existence.

A. arise

B. rise

C. raise

D. arouse

21. A love marriage, however, does not necessarily _____ much sharing of interests and responsibilities.