I passed the house for which the roof was broken

题目

I passed the house for which the roof was broken
为什么the roof 前不用whose,而用for which?
它与例句：I passed the house whose roof was broken有什么区别

答案

whose roof= for which the roof
就像 my book= the book一样.有whose了,就没有the.
结构：whose +名词= 介词+which the +名词
例如There is a mountain of which the top is covered with snow.
There is a mountain whose top is covered with snow.