The parents suggested in the hotel room but their kids were anxious to camp out during t

问题补充：

The parents suggested in the hotel room but their kids were anxious to camp out during the trip.

A. sleep

B. to sleep

C. sleeping

D. having slept

答案：

A. sleep

B. to sleep

(答案→)C. sleeping

D. having slept

解析：动词suggest后接另一个动词时，该动词习惯上要用动名词。另外，从句意上看，该动名词并不表示完成，所以不用完成式。