— There are many people over there. What to the old man?
— Sorry, I don’t know.
A. was happened
B. will happen
C. were happened
D. happened
网友回答
A. was happened
B. will happen
C. were happened
(答案→)D. happened
解析：What happened to sb表示某人发生了什么事，根据句意应用过去时。
翻译为“--有很多人在那儿。那个老人发生什么事了？--抱歉， 我不知道。”