16. If their passport _______ all right, they _______ arrested.
A. were … wouldn’t be B. had been … wouldn’t have been
C. are… mustn’t be D. should be … wouldn’t be
17. If only I _________ how to operate an electronic computer as you do.
A. had known B. would know C. should know D. knew
18. The thick smog covered the whole city. It was as if a great black blanket ______ over it.
A. had been thrown B. were thrown
C. be thrown D. had thrown
19. He spoke in a quiet, distinct voice, as though his thought _________.
A. was far away B. had been far away
C. were far away D. went far away
20. If I had only read all the books before I ________ the lecture!
A. would have attended B. attended
C. had attended D. have attended
21. I would have been able to help him, but I _______ so busy.
A. were B. had been C. was D. would be
22. -----“Where have you been?”
-----“I got caught in the traffic; _______ I would have been here sooner.”
A. however B. although C. anyway D. otherwise
23. It is desirable that the airplane _______ as light as possible.
A. was B. be C. is D. were
24. I _______ do that if I were given the choice.
A. would rather not B. would not rather
C. rather not D. had rather not
25. Everybody has arrived. It’s time we _________.
A. would start B. shall start
C. started D. had start
26. -----“Mrs. Williams can speak Japanese.”
-----“But she would rather _______ English with us.”
A. speak B. spoke C. to speak D. had spoken
27. John would rather that Jane _______ to the party yesterday evening.
A. did not go B. not go
C. had not gone D. wouldn’t gone
28. -----“What’s the matter with Harry?”
-----“I don’t know, but he certainly looks ______ he had lost his best friend.”
A. that B. so that C. like D. as if
29. His advice has made the design better than it ________.
A. would otherwise have been B. would be otherwise
C. has otherwise be D. had otherwise been
30. -----“I’m surprised to learn that you’re going back.”
-----“Yes, I had hoped that I _______ have to go back again, but I must.”
A. didn’t B. wouldn’t C. won’t D. mustn’t
参考答案：
1.D 2.B 3.D 4.D 5.A 6.A 7.A 8.D 9.A 10.C
11.C 12.A 13.A 14.D 15.A 16.B 17.D 18.A 19.C 20.B
21.C 22.D 23.B 24.A 25.C 26.A 27.C 28.D 29.A 30.B
