1 . —I’ve told you many times you _________ run the red light. The cars may hit you.
—Sorry, I won’t do it again.

A．wouldn’t

B．mustn’t

C．couldn’t

D．needn’t

2 . —May I go out in the afternoon?
—No, you ________. You must do your homework.

A．mustn’t

B．don’t

C．shouldn’t

D．needn’t

3 . —The high school entrance examination is coming!
—Yes, our teacher tells us we           be too careful while taking exams.

A．mustn’t

B．needn’t

C．can’t

D．shouldn’t

4 . State Security (安全) Law of the People’s Republic of China shows that we ________ provide any information for foreigners.

A．shouldn’t

B．won’t

C．mustn’t

5 . —Sir, may I park my car here?
—Sorry, look at the sign. You ________ park your car here.

A．couldn’t

B．may

C．mustn’t

D．needn’t

6 . — Can children under the age of 12 ride bicycles in the city?
— No. According to the law, they ________.

A．may not

B．mustn’t

C．needn’t

D．shouldn’t

7 . People ________ follow the traffic rules and they ________ drive after drinking.

A．must; don’t have to

B．must; mustn’t

C．have to; mustn’t

D．have to; don’t have to

8 . State Security Law of the People’s Republic of China shows that we ________ provide any information for foreigners.

A．shouldn’t

B．can’t

C．mustn’t

D．needn’t

9 . Be quiet! You ________ talk in the library.

A．mustn’t

B．might not

C．should

D．need

10 . Children under twelve ________ ride bicycles on the road. It’s dangerous.

A．needn’t

B．mustn’t

C．wouldn’t