问题描述：
i have no objection to-----the window to get some fresh air
A.you to open B.your opening C.your open D.you open
答案是c为什么?我选的是A,A为什么不队?
A.you to open B.your opening C.your open D.you open
答案是c为什么?我选的是A,A为什么不队?
问题解答：
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