问题
选择题
The house_________was destroyed has now been repaired.
A．the roof of it
B．whose roof
C．its roof
D．the roof of that
答案
B
题目分析：句意：屋顶被损坏的那座房子现在已经被修理了。先行词the house 后的定语从句缺少主语，AC两项不属于定语从句的形式，故排除， 关系代词that不能位于介词后， whose roof ="the" roof of which，故排除D，故选B。
考点：