◎ 题干
Three _____ of the old bridge has fallen down. It's _____.

A. fifth; safe
B. fifths; safe
C. fifth; dangerous
D. fifths; dangerous
◎ 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“Three _____ of the old bridge has fallen down. It's _____. [ ]A. fifth; safe B. fifths; safe C. fifth; dangerous D. fifths; dangerous …”主要考查了你对  【分数】【形容词】  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。