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。