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They _____ on the program for almost one week before I joined them and now we ____ on it as no good results have come out so far.

A. had been working ;are still working

B. had worked ;were still working

C. have been working ;have worked

D. have worked ;are still working

 

A

【解析】

试题分析:考查时态。第一空根据时间状语before I joined them,可知表示在过去某个时间之前一直进行的动作,用过去完成进行;第二空表是现在正在进行。句意:在我加入他们之前,他们一直为这项计划工作了几乎一周,我们现在还在继续进行因为现在到目前为止还没有出现好的结果。故A正确。

考点:考查时态

 

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