---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
---Would you come to my birthday party tomorrow evening?
---I’m afraid I ______. I have to look after my sister.
A. wouldn’t B. can’t C. won’t D. mustn’t
—Can I borrow your dictionary?
—Yes, you _______.
A. Can B. must C. should
— _ I use your eraser, Rose?
— Sure. Here you are.
A. May B. Would C. Need D. Must
