You shouldn’t here. The baby .A. play; sleepingB. to play; is sleepingC. plays; sleepsD.

问题补充：

You shouldn’t here. The baby .

A. play; sleeping

B. to play; is sleeping

C. plays; sleeps

D. play ; is sleeping

答案：

A. play; sleeping

B. to play; is sleeping

C. plays; sleeps

(答案→)D. play ; is sleeping

解析：本题的意思是“你不能在这里玩耍，孩子正在睡觉”。Should是情态动词后跟动词原型，正在睡觉要用进行时态，故选D.