◎ 题干
Great changes ______ in the city and a lot of buildings ______.
A.have taken place, have been set up
B.have been taken place, have been set up
C.were taken place, were set up
D.have taken place, set up
◎ 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“Great changes ______ in the city and a lot of buildings ______.A.have taken place, have been set upB.have been taken place, have been set upC.were taken place, …”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  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。