Look! The students basketball on the playground .A. playB. playingC. are playingD. is pla

问题补充：

Look! The students basketball on the playground .

A. play

B. playing

C. are playing

D. is playing

答案：

A. play

B. playing

(答案→)C. are playing

D. is playing

解析：根据look ，可判断是现在进行时，而主语为复数形式，故选C