19. You     make any noises, for the Senior Three students are taking their monthly test.

A. cair'l      B. needn't

C. mustn't     D. won't

2."多好的天气！出去散步怎么样？" "好主意。我们走吧！"

―How fine the weather is! ____________________out for a walk?

—Good idea. Let's go! (Why don't... ？)

根据括号內的提示完成句子

1. 天气是那么冷以至于我都不想离开房间。

The weather was__________ I didn't want to leave my room, (so."that -)

18.  You    trust an online shop just because it has a beautifully designed website.

A. shouldn't    B. mustn't

C. couldn't     D. needn't

17. ―What a pity! Their experiment is a failure.

―They    better under more favourable conditions.

A. should have done    B.  could have done

C.  must have done      D.  may have done

16. ―Excuse me, where is the nearest bank?

―Go straight ahead;  you    miss it, which is a huge building.

A. mustn't       B. can't

C. needn't   D. shouldn't

15. According to the latest study ， most traffic accidents    be prevented if drivers are careful enough.

A. must   B. can

C. have to    D. need

14. ―Please don't tell anybody.

―I    . I promise.

A. can't    B. don't

C. won't     D. mustn't

8.  The new teaching method __________ (寓教于乐).

7.  Has he been__________________ (监视）you?