You ________ play with the knife. You ________hurt yourself.

You had better _________ wine because you have to drive back home.

Li Lei can’t go hiking with us today,because he       take care of his sick mother.

----:     I get up at five o'clock tomorrow morning?
----:  No, you     .

－Mum, must I stay there the whole day?
－No, you__________. You__________ come back after lunch, of you like.
A. mustn’t; can       B. needn’t; must      C. needn’t; may

—Listen! Is that Millie singing?
—No. It _____ be Millie. She has gone to Beijing.

Some teenagers would rather _____ than _______ in their spare time.

–Must I finish my homework tonight?
-No, you______.

You'd better ____ football in the street.

—Must I park my car behind the building?
—No, you _______. You _______ park it there.
A.mustn’t; may
B.may not; must
C.don’t have to; may