They have fun chess（国际象棋）.A. playB. playingC. play theD. playing the

问题补充：

They have fun chess（国际象棋）.

A. play

B. playing

C. play the

D. playing the

答案：

A. play

(答案→)B. playing

C. play the

D. playing the

解析：have fun表示玩的愉快，后接doing sth，故选B