46. I don't know when he ______, but when he ______, I'll let you know.

A. will come/comes　　　 B. comes/will come　　　　　　　 C. comes/comes　　 　 D. will come/will come

45. The research laboratory is going to ______ the new type of computer to use.

A. take 　　　　　　　　 B. make 　　　　　　　 C. put 　　　　　　　　　 D. send

44. "Have you _____ him to give up smoking?" 　　　　　　　 "No. I _____, but he wouldn't listen."

A. persuaded/tried　　　　 B. tried/persuaded　　　　 C. tried/tried　　　　　 D. persuaded/persuaded

43.______,that step is not safe!

A. Look around 　　 B. Look up　　　　　　 C. Look out 　　　　 D. Look down

42. The air liner from Beijing _____ at 3:00 p.m.

A. is about to arrive 　　 B. has arrived 　　　 C. arrives 　　　 D. is going to arrive

41. After a while an agreement _____.

A. was arrived at　　 B. was arrived in 　 C. was arrived　　　　 D. has been arrived

40. It is high time you _____ in bed now.

A. are 　　　　　　　　　 B. were 　　　　　　　 C. will be 　　　　　　 D. would be

39. Bill said he ____ twenty-one the next year.

A. was going to be　　　　 B. was about to be　　　　 C. could be　　　　　　 D. was to be

38. My brother _____ while he _____ his bicycle and hurt himself.

A. fell/was riding　　　　　　　　　　　　　　　 B. fell/were riding

C. had fallen/rode　　　　　　　　　　　　　　　 D. had fallen/was riding

37. Our teacher told us that the earth _____ from west to east.

A. turns 　　　　　　　 B. turn 　　　　　　　　 C. has turned 　　　　 D. had turned