◎ 题干
A number of new houses _____ in Wenchuan last year.
[     ]
A. built
B. are built
C. were built
D. will be built
◎ 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“A number of new houses _____ in Wenchuan last year. [ ]A. builtB. are built C. were built D. will be built …”主要考查了你对  【被动语态】【一般过去时】  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。