The room door is painted green is our headmaster’s office. A. whoseB. itsC. whichD. of wh

问题补充：

The room door is painted green is our headmaster’s office.

A. whose

B. its

C. which

D. of which

答案：

(答案→)A. whose

B. its

C. which

D. of which

解析：定语从句考查题。先行词The room关系词 whose在从句中做定语，如果door前有定冠词the那么 D. of which 正确。 选A