31. The instructor had gone over the problems many times before the students _____the final examination.

　　A. will take B. took

　　C. take D. would take

　　32. The sports meeting _____ in October,1989.

　　A. was held B. would be held

　　C. has been held D. were held

　　33. The tickets _____ when I got there.

　　A. were selling out B. had been sold out

　　C. have been sold out D. were held

　　34. Apples _____ to be sweeter than oranges.

　　A. are said B. are being said

　　C. is being said D. were said

　　35. Mr.Smith _____ to Europe on a special mission.

　　A. had been sending B. were sent

　　C. is being sent D. was sending

　　36. When water is heated, it _____ into vapour.

　　A. is changed B. is changing

　　C. will be changed D. will change

　　37. She _____ for what she had done.

　　A. was criticized B. is criticized

　　C. is criticizing D. is being criticized

　　38. We _____ as soon as we got there.

　　A. were warmly welcome B. were warmly welcomed

　　C. would be welcome D. are welcomed

　　39. “Are Alice and Tom still living in New York?”

　　“No, they _____ to Dallas.”

　　A. are just moved B. have just moved

　　C. had just moved D. will just move

　　40. I haven’t heard from Maria_____.

　　A. since a long time B. for many months ago

　　C. for many months D. since many months before

　　41. His grandfather ______ for thirty years.

　　A. died B. was dead

　　C. has been dead D. has died

　　42.It’s(high)time you _____ a holiday.

　　A. had B. have

　　C. will have D. have had

　　43. The news _____quickly and made a stir.

　　A. spread B. spreads

　　C. spreaded D. was spread

　　44. When they came to the laboratory again, the lights _____.

　　A. glowed B. were still glowing

　　C. would glow D. had glowed

　　45. I suddenly _____ an insect crawling up my leg.

　　A. felt B. was feeling

　　C. was felt D. was being felt