21. --I don't think we have met before.

　　--Yes, once at a party, but we___________.

　　A. weren't introduced B. didn't introduce

　　C. haven't introduced D. were not introducing

　　22. You look so tired tonight. It is high time you_________.

　　A. went to bed B. went to sleep C. go to bed D. to sleep

　　23. People greatly__________ in their views of life.

　　A. lead B. differ C. bring D. struggle

　　24. __________ she couldn't understand was__________ fewer and fewer students showed interest

　　in her lessons.

　　A. What; why B. That ; what C. What ; because D.

　　25.The __________ is just around the corner and you won't miss it.

　　A. bicycle's shop B. bicycle shop

　　C. bicycles shop D. bicycles’ shop

　　26. --The prison was ___________ fire last night.

　　--Someone must have set fire___________ it.

　　A. on ; with B. on ; to C. over; with D. should

　　27. Keep up good state of mind even if you___________ fail plenty of times.

　　A. must B. will C. can D. should

　　28. Sandy could do nothing but _________ to his teacher that he was wrong.

　　A. admit B. admitted C. admiting D. to

　　29. I know nothing about the young lady ___________ she is from Beijing.

　　A. except B. except for C. except that D. besides

　　30. --Have you any oranges and apples?

　　--__________

　　A. Yes, madam, on the second shelf over there B. The oranges are very cheap.

　　C. You like apples, don’t you? D. Of course, we have some fruits.

　　31. We had ___________ wonderful time_________the party_______ other day.

　　A. a,on,the B./,at,on C. a,at,the D./,on,/

　　32. It's said that __________ is going to give us a lecture.

　　A. an American famous young B. a famous American youg

　　C. a famous young American D. a young famous American

　　33. Nearly________ of the surface of our planet is covered by water.

　　A. seven-ten B. seven-tenth C. seven-tenths D. seventh-ten

　　34. You must have waited here for a long time ,___________you?

　　A. mustn't B. didn't C. haven't D. hadn't

　　35. China has hundreds of islands, ___________ is Taiwan Island.

　　A. among them the largest B. and the largest of which

　　C. and the largest of them D. but in which the largest

　　36. --You don't look so well, Mary. What's the matter with you?

　　--Why?___________.

　　A. I'm quite myself B. Fine, think you

　　C. I felt bad D. I'm not myself

　　37. This new-type machine____________ little room.

　　A. takes up B. is taken up

　　C. has been taken up D. is taking up

　　38. It is impossible for____________ little room.

　　A. so, such B. so, so C. such a, so D. such, such

　　39. --You forgot your keys when you left home in the morning.

　　--Good heavens,___________.

　　A. so did I. B. so I did. C. so you did. D. so did you.

　　40. __________ it rain, the crops_____________.

　　A. Shall,would be saved B. Should, would be saved

　　C. Would, should be safe D. Were, might be safe