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 题目和参考答案——青夏教育精英家教网——

题目内容

2．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

分析在我加入他们之前，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．

解答答案：A
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，故选A．

点评本题难度适中．动词的时态是高中语法知识点的重难之一，需要考生掌握各种时态的用法，有分析理解复杂的句子结构及语境的能力．

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