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-You look tired． -Yes, I non-stop until 8 o'clock． [ ] A．had worked B．had been w

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-You look tired． -Yes, I non-stop until 8 o'clock． [ ] A．had worked B．had been w

－You look tired．

－Yes, I ________ non-stop until 8 o'clock．

[]

A．had worked

B．had been working

C．will work

D．was working

试题答案

答案：D

标签：nonstopuntilyesyou

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