( )1. —Jenny,________ you say this word in Chinese?
—Yes, it's very easy.
A. may B. can C. must D. should
( )2. —Is this T-shirt John's?
—It________ be John's. It is much too small for him.
A. can't B. can C. mustn't D. must
( )3. —Would you come to my birthday party tomorrow?
—I'm afraid I________. I have to look after my sister.
A. mustn't B. can't C. may not D. needn't
