问题描述：
don't you mind if I open the window?____
A.No,you don't B.Yes,of course not C.Certainly,please D.No,go ahead
选哪一个?最好说明一下理由,
A.No,you don't B.Yes,of course not C.Certainly,please D.No,go ahead
选哪一个?最好说明一下理由,
问题解答：
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