【Ihavenoideawhat_____whenIwasasleep.AishappeningBdidhappenChappenedDwashappened】
2021-02-01 83次 反馈错误 加入收藏 正确率 : 100%
题目内容：
I have no idea what _____when I was asleep.A is happening B did happen C happened D was happened
优质解答
C.
happen是不及物动词,没有被动语态.这句话的意思是：我不知道我在睡觉时发生了什么.
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