Question

.Look out! Don’t get too close to the house ______ the roof is under repair.

A．whose

B．which

C．of which

D．what

Answer 1

C

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。