Question

(   ) 4. ―Did you        play table tennis?

       ―Yes. But now I prefer        tennis.

   A. used to;playing   B. used to;to play

   C. use to;playing   D. use to;play

Answer 1

4. C used to do意为"过去常常做……"，其否定式为didn't use to;prefer doing意为"更喜欢做"。