By the time he got up, I ______ for two hours in the factory.A．have workedB．work_刷题宝

题干

By the time he got up, I ______ for two hours in the factory.

A．have worked

B．worked

C．was working

D．had been working

上一题下一题 0.64难度单项选择更新时间:2013-05-19 12:51:28

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