◎ 题干
— Peter, where did you guys go for the summer vacation?
— We________ busy with our work for months, so we went to the beach to relax ourselves.
[     ]
A. were  
B. have been  
C. had been  
D. will be
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“— Peter, where did you guys go for the summer vacation?— We________ busy with our work for months, so we went to the beach to relax ourselves. [ ]A. were B. …”主要考查了你对  【过去完成时】  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。