◎ 题干
—Have they visited the zoo many times.    
—______________.   Only once.
A. Yes, they have         B. No, they haven’t       C. No, they have
◎ 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“—Have they visited the zoo many times.—______________. Only once.A. Yes, they have B. No, they haven’tC. No, they have…”主要考查了你对  【并列连词】【从属连词】【therebe句型】  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。