—Look! The man at the gate ________ be our headmaster.
—No, it _________ be him. He is holding a meeting in the office.
A. must, can’t B. must, mustn’t C. can, can’t D. can, mustn’t
The sentence "Food or drink shouldn't be taken into the concert hall.” means_________.
A. People can take food and drink into the concert hall.
B. People can have either food or drink in the concert hall.
C. People are not allowed to take food or drink into the concert hall.
D. No people are allowed to have food or drink out of the concert hall.
It’s 11 o’clock now. The work _____ before noon. We need some more time.
A. needn’t finish B. mustn’t be finished C. may not finish D. can’t be finished
--Lucy wouldn’t mind lending you her dictionary.
---I think she won’t, but I ___do so. I’ve already borrowed one.
A. can’t B. mustn’t C. needn’t D. shouldn’t
Students have part-time jobs．
A. not should be allowed to B. should be not allowed to
C. should be allowed not to D. should not be allowed to
—Is your cousin good at his studies?
—He should be, but he _______ not. He spends too much time on computer games.
A. must B. can C. may D. need
