I was just about to go to bed last night ______ the telephone rang.A．whileB．when_刷题宝

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I was just about to go to bed last night ______ the telephone rang.

A．while

B．when

C．as

D．before

上一题下一题 0.64难度单项选择更新时间:2013-06-24 07:23:27

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