Question

--- Must I hand in my exercise book now, Mr. Zhao?
--- No, you_________. You may give it to me tomorrow

1. A.
    needn’t
2. B.
   mustn’t
3. C.
   can’t

Answer 1

A
must构成的一般疑问句否定回答通常用needn’t或don’t have to，故本题选A。