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They ______ on the program for almost one week before I joined them.
They ______ on the program for almost one week before I joined them.
admin
2009-08-15
61
问题
They ______ on the program for almost one week before I joined them.
选项
A、had been working
B、bad worked
C、have been working
D、have worked
答案
A
解析
根据句意应该选过去完成进行时,表示work on这个动作在 joined以前发牛,而且.我加入以后还在继续,故用过去完成进行时。答案为A。
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公共英语二级笔试题库公共英语(PETS)分类
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公共英语二级笔试
公共英语(PETS)
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