1 . Jeff can’t come to the party, because he’ll ________ help his sister with the housework.

A．must to

B．have to

C．has to

D．need to

2 . Ann is a smart girl. She ________ play the piano when she was five years old.

A．can

B．could

C．must

3 . I hope you ________ come to see me very soon.

A．can

B．to come

C．must

D．will

4 . We are surprised that Mr. Ma’s little daughter ________ speak English so well.

A．must

B．can

C．mustn’t

D．can’t

5 . — I have trouble sleeping recently.
— You ________ listen to light music to relax before going to bed.

A．must

B．could

C．mustn’t

D．couldn’t

6 . —         I use your computer, Dad?                    
—Yes, you can.

A．Must

B．Could

C．Would

D．Should

7 . — ________ you help to wash the car?
—Sorry, Dad. I’m doing my homework.

A．Must

B．Could

C．Might

D．Should

8 . — _________ you give me some advice about protecting the environment(保护环境)?
—Yes, I think it’s important to do garbage sorting(垃圾分类).

A．Can

B．Must

C．May

D．Need