—Dad, can I go to the movies tonight?
—Sure, but you ________ come back home before 9 o’clock.
A. can B. must C. may D. might
—_________ I borrow your history book?
—Sure. Here you are.
A. Must B. May C. Need D. Will
—Have you decided where to go for your summer vacation?
—Not yet. We _________go to Qingdao. It is a good place for vacation.
A. may B. should C. need D. must
---Fifty dollars for such a T-shirt! You _______ be joking!
---I’m serious．It’s made of silk.
A. must B. need C. may D. can
— May I take the magazine out of the reading room?
— No, you can’t. You _________ read it here. It’s the rule.
A. must B. would C. may D. might
It rained heavily, so we _______ stay at home watching TV or surfing the Internet all day.
A. could B. had to C. must
