Teenagers              allowed to drive in the street .

You look quite tired. You’d better _____a good rest.

—Listen！Helen is singing in the next room.
—It _____be Helen .She has gone to Beijing.

— Mum, my friends are waiting for me outside. May I go out to play with them?
— Yes, you        , but be careful, please.

----Must I hand in our homework today?
--- No, you ______.

The students        be in the classroom because there are lights in it.

——What did your uncle say？
——He told me he        call me the next day.
A. will                 B. should                  C. would

—Must I take out the trash?
—No,  you ________.

It’s already half past seven. You ________ get up quickly.

——Dad, must I finish my homework today?
——No, you         . You may do it tomorrow.