Li Lei hasn't come yet.I don't know what___to him.A.happen B.take place C.has taken place

分类: 作业答案 • 2021-12-20 09:44:29

问题描述：

Li Lei hasn't come yet.I don't know what___to him.A.happen B.take place C.has taken place
D.has happened

答

D 不知道什么发生了什么事情阻止了他来,表示猜想.用现在完成时.