The book.the cover _______ is broken,is not mine.

问题描述:

The book.the cover _______ is broken,is not mine.
A.of it B.for C.whose D.of which
C和D有什么区别呢?
我记得有时候它们两个是可以互换的,是什么时候呢?

D
如果这么说The book whose cover is broken,is not mine.就对了