◎ 题干
There _____ a lot of changes here since 1980.
[     ]
A. have been
B. have had
C. will be
D. are
◎ 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“There _____ a lot of changes here since 1980. [ ]A. have been B. have hadC. will be D. are …”主要考查了你对  【现在完成时】【therebe句型】  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。