_____ we got to the station, the train had left already.A．IfB．UnlessC．SinceD．Whe_刷题宝

题干

_____ we got to the station, the train had left already.

A．If

B．Unless

C．Since

D．When

上一题下一题 0.64难度单项选择更新时间:2013-11-13 02:54:54

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