I said some people were stupid I wasn't______you.

问题描述:

I said some people were stupid I wasn't______you.
A.refer to B.referred to C.referring to D.referring at 正确答案是C.
我想问的是为什么用ing形式啊?

这里没有被提及的意思,不需要用被动语态 be done 结构,这里是提及的意思,用be doing 的结构