16. --What when I phoned you?

　　A. had you done; finished

　　B. were you doing; had just finished

　　C. did you do; had just finished

　　D. were you doing; was finishing

　　17. My uncle___________ until he was forty-five.

　　A.married B. didn't marry

　　C.was not marrying D. would marry

　　18. Scientists say it may be five or ten years___________ it is possible to test this medicine on human patients.

　　A.since B. before C. after D. when

　　19. --I can't find Mr. Smith.

　　--It was in the hotel___________ he stayed.

　　A. that B. where C. which D. since

　　20. Our new house is very___________ for me as I can get to the office in five minutes

　　A. convenient B. comfortable C. natural D. helpful

　　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.