21.(　 ) In the past few years there 　　　　great changes in my hometown .

A. have been　　 　　　 B. were　　 　　　　　　　 C. had been　　　 　　　　 D. are

20.(　 ) Mrs. Liu is kind and always 　　　　her help to others .

A. shares　　　 　　　　　　 B. receives　　 　　　　　 C. makes　　　 　　　　　　 D. offers

19.(　 ) - Do I have to come back tomorrow? - Yes, you______.

A. can 　　　　　　　　　　 B. may 　　　　　　　　　　　 C. must 　　　　　　　　　　　 D. should

18.(　 ) - What's up? - I can't stand the noise outside. It's nearly______ me mad.

A. keeping 　　　　　 B. turning 　　　　　　　　　 C. causing 　　　　　　　　　 D. driving

17.(　 ) - Did James speak to you this morning? - No, he____ me, but he didn't notice me.

A. passed 　　　　　　　　 B. saw 　　　　　　　　　　　　 C. greeted 　　　　　　　　　 D. knocked

16.(　 ) - Where is my little dog?　 - It　　 　the back of the house.

A. has gone to 　　　　　 B. had gone to 　　　　　　 C. has been to 　　　　　　 D. had been to

15.(　 ) - When _____ your brother ______ back?　 - About half an hour ago.

A. did; come 　　　　　　 B. had; come　　　　 　　 C. do; come 　　　　　　　　 D. have; come

14.(　 ) - What do you do?

- I'm an engineer. I _____ in a company in Wuhan. I like my job very much.

A. work 　　　　 　　　　　　　 B. had worked 　　　　　　 C. will work 　　　　　　　 D. worked

13.(　 ) As the saying ____, "Where there is a will, there is a way."　　　　　　　　　　　

A. go　　　　 　　　 B. goes　　　　　　 　 C. going　　 　　　　　　　 D. went

12.(　 ) You ____ do it if you really don't want to.

A. needn't　　　　 　　 B. mustn't　　　　 　　 C. can't　　　　 　 D. couldn’t