◎ 题干
—Is there a poster on the wall?    
—No,_____.
[     ]
A. it isn't      
B. there isn't      
C. there aren't      
D. they aren't    
◎ 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“—Is there a poster on the wall?— No, . [ ]A. it isn't B. there isn't C. there aren't D. they aren't …”主要考查了你对  【一般疑问句】  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。