In my opinion,what Sun Yang______good to the international status of our country.A.did do does B.

题目

In my opinion,what Sun Yang______good to the international status of our country.A.did do does B.
does did do C.did does do D.does do did 请问选什么?为什么?

答案

选择 C
what Sun Yang did 孙杨所做的,因为已经发生,所以用过去式
does do good to 第一个does 是助动词,表示强调
第二个 是固定搭配 do good to 对 ...有好处
整句意思
在我看了,孙杨所做的,确实对我们国家的国际地位有好处