They had fun games in the park.A. playB. playingC. playsD. played

问题补充：

They had fun games in the park.

A. play

B. playing

C. plays

D. played

答案：

A. play

(答案→)B. playing

C. plays

D. played

解析：在公园做游戏他们很高兴。现在分词作状语表示主语正在进行的伴随性动作，结合语境可知选B。