◎ 题干
The little boy was so careless with his spelling that he often     letters from words.
A.left offB.left behindC.left outD.let alone
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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 little boy was so careless with his spelling that he oftenletters from words.A.left offB.left behindC.left outD.let alone…”主要考查了你对  【动词短语】【动词】  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。