◎ 题干
Mom, I lost ________ diamond ring you bought for me as my birthday present.Could you keep
________ eye out for it when you clean my bedroom?
[      ]
A. a;  an  
B. a;  the  
C. the;  an  
D. the;  the
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Mom, I lost ________ diamond ring you bought for me as my birthday present.Could you keep ________ eye out for it when you clean my bedroom? [ ]A. a;anB. a;…”主要考查了你对  【不定冠词】【定冠词】  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。