—— Do you mind my opening the window? It’s a bit hot in here.——, as a matter of factA. Go

—— Do you mind my opening the window? It’s a bit hot in here.
—— , as a matter of fact
A. Go ahead
B. Yes, my pleasure
C. Yes, I do
D. Come on

A. Go aheadB. Yes, my pleasure(答案→)C. Yes, I doD. Come on解析：根据答语中的as a matter of fact “实际上”，可知作者很介意。

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