◎ 题干
By the end of 1989 many buildings _____ built in the city.
[     ]
A. will
B. have been
C. had been
D. have
◎ 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“By the end of 1989 many buildings _____ built in the city.[ ]A. will B. have been C. had been D. have …”主要考查了你对  【被动语态】【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。