◎ 题干
— Do you know him well?    
— Sure, we _____ friends since ten years ago.
[     ]
A. were
B. have been
C. have become
D. have made
◎ 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“— Do you know him well?— Sure, we _____ friends since ten years ago. [ ]A. were B. have been C. have become D. have made …”主要考查了你对  【现在完成时】  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。