问题描述：
当表示问 某人发生了什么事
—Do you know what happened to her y
--No._____________.
a.What was the matter with him?
b.What did the accident happen?
c.What about him?
请说明理由
—Do you know what happened to her y
--No._____________.
a.What was the matter with him?
b.What did the accident happen?
c.What about him?
请说明理由
问题解答：
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