◎ 题干
-Is that a ruler?
-No, ______________.
[     ]
A.it is
B.it isn't
C.that is
D.that isn't
◎ 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 that a ruler?-No, ______________.[ ]A.it isB.it isn'tC.that isD.that isn'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。