◎ 题干
Jerry did research in that field for a long time.He ________ invent something useful.
[     ]
A.got down to  
B.hoped himself to  
C.set out to  
D.devoted himself to
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Jerry did research in that field for a long time.He ________ invent something useful.[ ]A.got down toB.hoped himself toC.set out toD.devoted himself to…”主要考查了你对  【动词短语】  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。