◎ 题干

Cindy shut the door heavily and burst into tears. No one in the office knew__________she was so angry.
A.where B.whether C.that D.why
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Cindy shut the door heavily and burst into tears. No one in the office knew__________she was so angry.A.whereB.whetherC.thatD.why…”主要考查了你对  【并列连词】【从属连词】  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。