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It’s important ____ the piano well.

A. of him to play?????????????????? B. for him to play??

C. of him playing?????????????????? D. for him playing

It’s important ________ the piano well.

A. of him to play      B.for him to play         

C.of him playing      D. for him playing

 It’s important        the piano well .

       A. of him to play  B. for him to play   C. for him playing