This is the article written by him _____ I spoke to you about. 应该填什么?答案:A.which B.who C.whose D.where

This is the article written by him _____ I spoke to you about. 应该填什么?
答案:A.which B.who C.whose D.where

选择A written by him 是插入语,真正的主语是the article

B
意为，这篇文章就是我对你提到过的那个男生写的。

可能是A

似乎应该在空前加一个逗号
是非限定性的
A

我觉得应该用whom更好些
speak to you about
好像后面应该是宾格...