◎ 题干
They _____ on the program for almost one week before I joined them, and now we _____ it as no good results have come out.
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
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“They _____ on the program for almost one week before I joined them, and now we _____ it as no good results have come out.A.had been working; are still workingB…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。