1 . You ______ write in the books you borrow from the school library, or you will be fined.

A．needn’t

B．mustn’t

C．couldn’t

2 . You ________ visit a strange city on your own because you ________ get lost.

A．must; may not

B．mustn’t; may

C．needn’t; need

D．can’t; can’t

3 . You ________ play with fire in the forest. It will kill plants, animals and even people.

A．dare not

B．needn’t

C．mustn’t

4 . You _________ go across the road when the red light is on. Everyone must obey the rule.

A．can’t

B．needn’t

C．mustn’t

D．shouldn’t

5 . —Can I tell my best friend about it?
—No. It’s just between you and me. You ________ tell anyone else.

A．needn’t

B．may not

C．mustn’t

D．don’t have to

6 . According to the traffic rules, children under 12 ________ sit in the front of the car.

A．can’t

B．needn’t

C．mustn’t

D．shouldn’t

7 . 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

D．needn’t

8 . —May I put my bike here?
—No, you ________. It is for the shared bikes. Put it over there, please.

A．mustn’t

B．won’t

C．needn’t

D．may not

9 . Don’t you know students ________ bring the Mobile phone to school?

A．needn’t

B．mustn’t

C．wouldn’t

D．couldn’t

10 . —Daniel, you ________ spread the books all over the floor. It is a rule.
—Sorry, I won’t.

A．couldn’t

B．needn’t

C．wouldn’t

D．mustn’t