________ hard all day, I went to bed at 8 o’clock.A．Having workedB．WorkingC．To w_刷题宝

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________ hard all day, I went to bed at 8 o’clock.

A．Having worked	B．Working
C．To work	D．To have worked

上一题下一题 0.64难度单项选择更新时间:2016-11-22 04:40:43

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