—I don't think we have met before，________？—Yes，once at a party，but we weren't i

题干

—I don't think we have met before，________？
—Yes，once at a party，but we weren't introduced.

A．do I

B．have we

C．don't I

D．haven't you

上一题下一题 0.64难度单项选择更新时间:2014-06-16 07:11:14

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