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 workingB. had worked ;were still workingC. have bee 题目和参考答案——青夏教育精英家教网—

题目内容

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

【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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