题目内容

-I can't walk any longer, Mum.

-Why? ________, dear?

[  ]

A.What has happened
B.What did you happen
C.What have you happen
D.What is happened to you
答案:A
解析:

happen作“发生”讲时,没有被动语态形式.要询问“某人发生了什么事?”要用what(做主语)来提问,不能用表示人的代词或名词来充当,表示人的代词或名词只能做happen to的宾语.故答案选A


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