问题补充：
--Do you mind if I open the window? ---. We should let in more fresh air.
A. Yes, go ahead.
B. I would like to close it.
C. Of course not.
D. I’d prefer it if you didn’t
答案：
A. Yes, go ahead.
B. I would like to close it.
(答案→)C. Of course not.
D. I’d prefer it if you didn’t
解析：前面问如果我打开窗户你是否介意,从答语的后一句来看,前面应是否定回答,所以选C.
