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He found it very difficult___. A.sleeping B.sleeps C.slept D.to fall asleep

分类: 作业答案 • 2021-12-28 19:10:02

问题描述：

He found it very difficult___. A.sleeping B.sleeps C.slept D.to fall asleep

答

D
find it + 形容词 + to do sth.