◎ 题干
—Jim, where _____ you _____ ?
—I'm buying a pen.

A. is; doing
B. are; doing 
C. is; going
D. are; going
◎ 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“—Jim, where _____ you _____ ?—I'm buying a pen. [ ]A. is; doing B. are; doing C. is; going D. are; going …”主要考查了你对  【特殊疑问句】  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。