there was a car accident yesterd. _____________________ 选择题

问题描述:

there was a car accident yesterd. _____________________ 选择题
选项为:
a,What did Mr Hu happen?b,What did happen to Mr Hu?
c,Mr Hu happened what? d,What happened to Mr Hu?

正确答案是D
What happen to sb固定搭配.