he is living in a house the roof has been repaired用什么关系词

题目

he is living in a house the roof has been repaired用什么关系词
of which 注意是the roof

答案

whose
He is living in a house whose roof has been repaired.
house先行词在定语从句中用作定语,那所房子的屋顶,the roof of that house,所以用whose作关系词