56. What ______ from seven to eight tomorrow?

A. will you do　　　 B. do you do

C. will you be doing　　　 D. were you doing

答：C。表示将来某一时刻或某段时间里正在进行的动作应用将来进行时。

55. What ________ this time yesterday?

A. are you doing　　 　B. will you do

C. will you be doing　　 D. were you doing

答：D。过去某时刻正在进行的动作应用过去进行时。

54. In the past, the old men________ under the tree, telling stories.

A. would sit　　 B. were sitting　

C. had sat　　　 D. have sat

答：A．in the past在过去，是过去时的时间状语。would过去经常或习惯的动作。

53. Many new buildings _____ in my hometown in the past 20 years.

A. was built　　　　　 B. built

C. have built　　　　 　D. have been built

答：D. in the past 20 years 二十年来，是和现在完成时连用的时间状语。

52. By the end of last term, we_______ more than 3000 English words.

A. have learned　　　　 B. had learned

C. will have learned　 　　D. will learn

答：B。 by the end of last term 到过去某时刻为止．应用过去完成时。

51. By the time you get home, he ________ Guangzhou.

A. had left for　　　　 B. will have left for

C. has left for　　 　D. left for

答：B。by the time常与完成时连用，get是用现在时代替将来时，到将来某时刻为止，应用将来完成时。

50. He has _________ in Shanghai for two years.

A. gone to　　 B. been to　　

C. been in 　　D. gone in

答：C。 have gone to...去了……(为暂短性动词)；have been to...去过……；have been in...一直呆在……。

49. By the time the firemen arrived, the fire　　　　 ________ for half an hour.

A. had gone out　　 　B. had been out

C. had been put ont　　 D. bas been put out

答：B。go out为不及物短语，意为“熄灭”，put out是及物的短语，意为“扑灭”，可用被动语态，但go out和put out均为暂短性动词。

48. - Tom has already arrived.

　 -Oh, I thought he ________ tomorrow.

A. will come 　　B. was coming　

C. had come　　 D. comes

答：B。若主句用过去时，从句应用过去式，但主句若是现在时，从句也可用过去时。 come, go, arrive, stay, take, have. do等词的进行式可以表示将来。

47. The last time I ______Jane, she _______ cotton in the fields.

A. had seen, was picking　　 B. saw, picked

C. had seen, picked　　　 D. saw, was picking

答：D。The last time相当于从属连同，引导时间状语从句，表示过去某一时刻正在进行的动作，应用过去进行时。