◎ 题干
They said they _____ in Shenzhen for about 20 years by then.

A. live
B. have lived
C. have been
D. had been
◎ 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 said they _____ in Shenzhen for about 20 years by then. [ ]A. liveB. have lived C. have been D. had been …”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。