◎ 题干
—How old is the bridge over there?
—Oh, very old. It _____ about three hundred  years ago.
[     ]
A. is built
B. was built
C. is building
D. has 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“—How old is the bridge over there? —Oh, very old. It _____ about three hundred years ago. [ ]A. is built B. was built C. is building D. has 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。