You ________ worry about it．We can help．

1. A.
   have to
2. B.
   don't have to
3. C.
   don't need
4. D.
   needn't to

　　You needn't worry about it.(变为同义句)

　　You ________ ________ ________ worry about it.

　　You needn't worry about it.(变为同义句)

　　You ________ ________ ________ worry about it.

You ________worry about me. It's nothing serious.

A. can't

B. mustn't

C. needn't

D. won't