He is leaving for Australia and it will be three years ________ he comes back.A．_刷题宝

题干

He is leaving for Australia and it will be three years ________ he comes back.

A．before

B．after

C．since

D．until

上一题下一题 0.64难度单项选择更新时间:2014-12-02 08:44:55

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