◎ 题干
The person in front of me at ___checkout was using ___card to check out butfound it wasn't working.
A.不填;aB.the; aC.a; theD.the; the
◎ 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“The person in front of me at ___checkout was using ___card to check out butfound it wasn't working.A.不填;aB.the; aC.a; theD.the; the…”主要考查了你对  【不定冠词】【定冠词】【零冠词】  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。