◎ 题干
There _____ great changes in our school since 1979.

[     ]

A. have been
B. were
C. has been
D. are
◎ 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“There _____ great changes in our school since 1979. [ ]A. have been B. were C. has been D. are …”主要考查了你对  【现在完成时】【主谓一致】  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。