◎ 题干
Tom’s decided to devote all he could ________ his English before going abroad.
A.to improvingB.have improved
C.to improveD.improve
◎ 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“Tom’s decided to devote all he could ________ his English before going abroad.A.to improvingB.have improvedC.to improveD.improve…”主要考查了你对  【不定式】【分词】【动名词】  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。