◎ 题干
They _______ friends since they met in Shanghai.

A.had got
B.have became
C.have been
D.have turned
◎ 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“They _______ friends since they met in Shanghai. [ ]A.had got B.have became C.have been D.have turned …”主要考查了你对  【系动词】【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。