What are you looking for?I’m looking for the CD about EXO ___ I bought yesterday.

问题描述:

What are you looking for?I’m looking for the CD about EXO ___ I bought yesterday.
为什么只能用that不能用which

都可以用,原因一是 这里that/which做从句的宾语,也就是i bought the CD.that/ which这就就是代指the CD的.且可以省略.原因二是先行词 the CD 前面没有任何修饰词,当然that和which 都可以了.