国家开放大学 / 综合英语（1）
– Do you mind my opening the window? It’s so hot today.
–
a.No, not at all.
b.Yes, you can do.
c.Yes, it doesn’t matter.
–
a.No, not at all.
b.Yes, you can do.
c.Yes, it doesn’t matter.
参考答案：
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