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A. listen to 　　　　　　　　  B. listens to

C. listening to 　　　　　　  D. listened to

Some boys of Class One enjoy ________ music.

A. listen to

B. listens to

C. listening to

D. listened to

Some boys of Class One enjoy ________ music.

A. listen to

B. listens to

C. listening to

D. listened to

Some boys of Class One enjoy _________ music.

A. listen to

B. listens to

C. listening to

D. listened to