Look out! Don’t get too close to the house roof is under repair.
A. whose
B. which
C. of which
D. what
网友回答
(答案→)A. whose
B. which
C. of which
D. what
解析：whose引导定语从句，且在定语从句中用作定语，修饰roof，又如：A mental patient is one whose mind is diseased. 精神病人是脑子有病的人。The girl whose work got the prize is the youngest in her class. 作品获奖的女孩是她班上年纪最小的。