◎ 题干
—Is there a ball under the desk?      
—_____.

A. Yes, it is
B. Yes, there's
C. No, there isn't
D. No, there is
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— Is there a ball under the desk?— _____. [ ]A. Yes, it isB. Yes, there's C. No, there isn't D. No, there is …”主要考查了你对  【therebe句型】【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。