21. How long ago ___________ learning at the night school?

　　A. have you stopped

　　B. had you stopped

　　C. did you stop

　　D. do you stop

　　22. We _________ for the bus half an hour, but it has not come yet.

　　A. are waiting

　　B. have waited

　　C. have been waiting

　　D. have been waited

　　23. The boy wanted to go roller-skating, but his mother told him ________.

　　A. not to

　　B. no to do

　　C. no to do it

　　D. do not

　　24. I didn’t go to the lecture, but I do wish I _________ there.

　　A. was

　　B. were

　　C. went

　　D. had been

　　25. The boy was made _________ the room again.

　　A. clean

　　B. to clean

　　C. cleaning

　　D. cleaned

　　26. It was __________ job that he had to ask for help.

　　A. such a big

　　B. so a big

　　C. a such big

　　D. a so big

　　27. He didn’t know ___________ to the movies or stay at home watching TV.

　　A. to go

　　B. if to go

　　C. whether to go

　　D. go

　　28. Not only Mr. and Mrs. Smith but also their son Jim __________ invited to the party last night.

　　A. are

　　B. were

　　C. is

　　D. was

　　29. I can’t remember _________ room I lived in during my university days.

　　A. which

　　B. what

　　C. how

　　D. where

　　30. If John needs a pencil, he can use one ___________.

　　A. of me

　　B. mine

　　C. of mine

　　D. my

　　31. There _________ no buses to that beach, they had to ride their bicycles.

　　A. being

　　B. been

　　C. were

　　D. had been

　　32. I’m terribly sorry. I _________ to tell you I would be late.

　　A. ought to phone

　　B. should phone

　　C. need phone

　　D. ought to have phoned

　　33. This exercise is too difficult that only __________ students can do it.

　　A. a little

　　B. a few

　　C. little

　　D. few

　　34. If it ________, the band’s members will have to cover their instruments.

　　A. will rain

　　B. rains

　　C. is raining

　　D. would rain

　　35. Sentences of this kind need __________.

　　A. to improve

　　B. improved

　　C. improving

　　D. to be improving

　　36. My suggestion is that the experiment ___________ in another way.

　　A. is done

　　B. will be done

　　C. has been done

　　D. be done

　　37. I don’t know __________ you can recognize her from here.

　　A. if

　　B. that

　　C. what

　　D. who

　　38. They are not aware of the reason ___________ people are unwilling to talk about insurance.

　　A. when

　　B. where

　　C. why

　　D. how

　　39. Farmers rotate their crops __________ the soil will remain fertile (肥沃).

　　A. so that

　　B. because of

　　C. in order to

　　D. rather than

　　40. In front of the engine is a fan, __________ purpose is to draw air through the radiator to cool the water.

　　A. which

　　B. that

　　C. what

　　D. whose

　　参考答案：

　　1—10 C D C C A B D C C A

　　11—20 A B A D D A B B A B

　　21—30 C D A D B A C D A C

　　31—40 A D B B C D A C A D