初中英语情态动词的被动语态单选题

–Look at that girl! Is it Susan?
--No, it _______ be her. She has gone back to her hometown.

A．mustn’t

B．can’t

C．needn’t

D．wouldn’t

You _______ see a dentist when you have a toothache. 

A．may

B．need

C．should

D．can

—        we pick apples on the farm?
—Good idea!
A. Will                                                   B. May                                           C. Shall

—Is Mr. Green in the office?
—No, he ________ be in the office. Look, the light in the office is off.

A．mustn’t

B．can’t

C．needn’t

D．may not

You       play computer games for a long time. It’s bad for your eyes.

A．should

B．shouldn’t

C．could

D．don’t have to

-May we leave the classroom now?
-No, you ______. You ______ to leave until the bell rings.

A．mustn’t, are allowed	B．don’t have to, are supposed
C．needn’t, aren’t allowed	D．can’t, aren’t supposed