Last night I was watching some news about the American financial crises(金融危机) on

题干

Last night I was watching some news about the American financial crises(金融危机) on TV _______ the power went off.

A．while

B．as

C．when

D．during

上一题下一题 0.85难度单项选择更新时间:2013-04-24 06:21:53

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