.Look out! Don’t get too close to the house the roof is under repair.
A. whose
B. which
C. of which
D. what
网友回答
A. whose
B. which
(答案→)C. of which
D. what
解析： 考查定语从句。先行词是the house，带入定语从句 the roof is under repair，应是the roof of the house is under repair.所以选C.如果roof前没有the，可以选A。