◎ 题干
— How long has the Scientific Museum in Chongqing been open to the public?
— For more than 2 months since _____.

A. it was completed
B. it completed
C. it has been completed
D. it has completed
◎ 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 long has the Scientific Museum in Chongqing been open to the public? — For more than 2 months since _____. [ ]A. it was completed B. it completed C. i…”主要考查了你对  【一般过去时的被动语态】  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。