50. He traveled to many mountain villages and saw many poor children out of school. This experience _______ his life.

　　 A. would change　　 　　　　　　 B. had changed

C. was to change　　 　　　　　　　 D. was changing

49. You _______ things about. Look, what a mess in your room.

　　 A. always throw　　　　　　　　　 B. have always thrown

　　 C. are always throwing　　　　 　　 D. have always been throwing

48. ―You haven’t said a word about my new hair-style, Molly. Do you like it?

　 　―I’m sorry I ______ anything about it sooner. I certainly think it’s pretty.

　　 A. wasn’t saying　　 　　　　　　　 B. don’t say

C. won’t say　　　　 　　　　　　 D. didn’t say

47. We plan to reach the North Pole in mid-July, and by then we _______ for six weeks.

　　 A. are walking　　　　　　　　　　 B. have been walking　

　　 C. will be walking　　　　　　　　 D. will have been walking

46. ―I guess you might have got lost there last Sunday.

　 　―Well, I_______.

　　 A. mostly did　　　 　　　　　　　 B. nearly had

C. almost had　　　 　　　　　　　 D. almost did

45. ―Hello! May I speak to Jack, please?

　 　―Yes, speaking.

　 　―Oh, I _________ your voice at first.

　　 A. don’t recognize　 　　　　　　　 B. didn’t

C. hadn’t recognized 　　　　　　　 D. haven’t recognized

44. Caunen Ferreira ______ up hope of finding her pet parrot, Raquel, who ______ from the back garden of her house two years ago.

　　 A. has given; was disappeared　　　　 B. has given; had disappeared

　　 C. had given; was disappeared　　　 D. has given; disappeared

43. A large crowd _______ wildly as the pilot _________ her plane safely in California.

　　 A. had cheered; was landing　　　　 B. had cheered; landed

　　 C. was cheering; had landed　　　　 D. was cheering; landed

42. The women’s club _________ Lin, a foreign company employee who used to pay little attention to her appearance, to improve her dress style and become more confident and open-minded.

　　 A. enabled　　　　 　　　　　　　 B. had enabled

C. has enabled　　　 　　　　　　　 D. enables

41. ―Are you still able to speak French and Russian?

　 　―I _________. But I can only remember few French words. No Russian words at all now.

　　 A. am　　　　　　 　　　　　　　 B. was

C. have　　　　　 　　　　　　　 D. had