1. — __________ I return the dictionary within three days?
— No, you __________. You __________ keep it for five days.
A. May; needn't; will B. Can; mustn't; would
C. Must; don't have to; can D. Shall; can't; should
2. Sir, you __________ be sitting in this waiting room. It is for women and children only.
A. oughtn't to B. can't C. won't D. needn't
3. She is already two hours late. What __________ to her?
A. can have happened B. must have happened
C. should have happened D. must happen
4. Mary __________ the job he offered to her, but she didn't.
A. can't take B. ought to have taken
C. should take D. must have taken