20.　　 -We need a person badly to think up such an idea.

-_______ the new comer have a try?

A. Shall 　　　B. May 　　　C. Should 　　　D. Need

19.　　 Sorry I’m late. I ______ have turned off the alarm clock and gone back to sleep again.

A. might 　　　B. should 　　　C. can 　　　D. will

18.　　 I’ve tried several times, but the car just _______.

A. doesn’t start 　　　B. wouldn’t start 　　　C. won’t start 　　　D. didn’t start

17.　　 --What will you do during winter vacation?

--I don’t know, but it’s about time ____ something.

A I’m deciding 　　　B I’ll decide 　　　C I’d decided 　　　D I decided

16.　　 In the summer vacation we____ often take a walk along the river.

A might 　　　B could 　　　C would 　　　D should

15.　　 If you listen to me, you ____have some candies, Tommy.

A. are able to 　　　B. shall 　　　C. must 　　　D. need

14.　　 This cake is very sweet. You _____ a lot of sugar in it.

A. should put　　　 B. could have put　　　 C. might put　　　 D. must have put

13.　　 The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.

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

12.　　 I have lost one of my gloves. I _____ it somewhere.

A. must drop　　　　　　　　　　 B. must have dropped

C. must be dropping　　　　　　　 D. must have been dropped

11.　　 Oh, I’m not feeling well in the stomach. I ______ so much fried chicken just now.

A. shouldn’t eat　　 B. mustn’t have eaten　　 C. shouldn’t have eaten　　 D. mustn’t eat