1 . —Mom, may I take a trip to Yunnan Nationalities Village?
—Sure, you _________.

A．must

B．have to

C．can

D．need

2 . —Could you please feed the chickens?
—Sorry, I ________.

A．can’t

B．couldn’t

C．mustn’t

D．needn’t

3 . —Could we play football after the movie, Mum?
—No, you ________. You must finish your homework first.

A．needn’t

B．shouldn’t

C．can’t

D．couldn’t

4 . Don’t make a promise. You can’t keep it. (用unless合并为一句话)
Don’t make a promise ________ you ________ keep it.

5 . Superman is strong and brave. He ________ fly through the sky and fight bad people.

A．could

B．can

C．must

D．need

6 . —Mary, ________ you speak Chinese?
—Yes, only a little.

A．must

B．can

C．need

7 . —Whose purple coat is this?
—It ______ be Lily’s. Hers is red. It ______ be Lucy’s. She likes purple.

A．mustn’t; must

B．may; must

C．can’t; may

8 . —Look at the woman in red. Is she Miss Yang?
—It _________ be her. She wears a blue cheongsam today.

A．can’t

B．may

C．must

9 . Lucy is good at basketball. She ________ play basketball very well.

A．can

B．can’t

C．must

D．have to

10 . I don’t like cooking, so I ________ join the Food and Drink Club.

A．can

B．may

C．must

D．can’t