◎ 题干
There        great changes in our city in the past 10 years.       
[     ]
A. were
B. had
C. have been
D. have had
◎ 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“Theregreat changes in our city in the past 10 years. [ ]A. were B. had C. have beenD. have had…”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。