Question

They _____ on the program for almost one week before I joined them, and now, we ____on it as no...

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

Answer 1

A

试题分析：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源旁出现好的结果。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，雹陪橡用过去完成进行；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。 即学即练：Tom         乱塌in the library every night over the last three months. A. works     B. worked     C. has been working     D. had been working 解析：C。句意：“在过去的三个月里，Tom每天晚上都在图书馆里学习。”题干中出现的over the last three months，是明显提示用现在完成进行时或现在完成时。故选C。