1 . People ___________ kill wild animals for money. It’s against the laws.

A．should

B．can

C．mustn’t

D．needn’t

2 . You ________ never play in the street. It’s not safe.

A．can

B．may

C．must

D．need

3 . Sir, you ________ use your mobile phone at the gas station (煤气站). It’s dangerous.

A．mustn’t

B．don’t have to

C．needn’t

D．may not

4 . If you have something important to do, you ________ waste any time.

A．needn’t

B．mustn’t

C．may not

D．won’t

5 . If we drink wine at meals, we ________ drive cars.

A．needn’t

B．mustn’t

C．shouldn’t

D．wouldn’t

6 . —What beautiful works of art! Couldn’t I take photos of them?
—No, you ________. The flash does harm to them.

A．mustn’t

B．couldn’t

C．won’t

D．needn’t

7 . You ________ put your finger into the fan, boy. It’s too dangerous.

A．should

B．mustn’t

C．needn’t

D．may

8 . When you take a plane, your luggage ________ weigh too much.

A．mustn’t

B．needn’t

C．shouldn’t

D．may not

9 . —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

10 . — 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