－_________ we go at 7.30 ?
－What about __________ it a little earlier ?

You’d better _____ too much fried chicken. It’s not good for your health .

Must I move the table? No, you _____________.

--- Will the new iphone cost a lot?
--- I ________ think so. Apple’s products are usually expensive.

—The girl reading books        Lily.
—It        her, she is on the playground now.
A．must be; mustn’t be B．may be; mustn’t be      C．must be; can’t be

The problem is too difficult for him. He _______ solve it by himself without any help.

--- Whose French book is it?
--- It __________ be Lucy’s. Look! Her name is on the book!

— Must I take the medicine every day?   — No, you ____.
A. must not         B. may not        C. don’t have to

— Bill, is the pink umbrella Anna’s?
— No, it _____ be hers. Hers is purple.

--- Look, Mr Green is on the other side of the street.
--- It _____ be him.He has gone to London on business.