◎ 题干
Many people have been ill from a strange disease these days,       we’ve never heard of before.
A.one B.that C.it D.this
◎ 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“ Many people have been ill from a strange disease these days, we’ve never heard of before.A.oneB.thatC.itD.this…”主要考查了你对  【人称代词】【相互代词】【疑问代词】【关系代词】  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。