(2017·北京卷·单项填空)—Peter, please send us postcards ________ we'll know where you ha

题干

(2017·北京卷·单项填空)—Peter, please send us postcards ________ we'll know where you have visited.
—No problem.

A．but	B．or
C．for	D．so

上一题下一题 0.85难度单项选择更新时间:2017-08-09 11:13:34

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