◎ 题干
一What's behind          door? I can't open it.   
一Let me see.Oh,there's a chair.  
A.a B.an C.the D./
◎ 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“一What's behind door? I can't open it.一Let me see.Oh,there's a chair. A.aB.anC.the D./…”主要考查了你对  【定冠词(the)】【不定冠词(a,an)】【零冠词】  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。