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______himself to his research on the IT technology, he soon made a breakthrough.
A.DevotedB.DevotingC.DevoteD.To devote
B

试题分析:考查现在分词做状语,句意:因为致力于IT技术的研究,他很快就有了突破。Devote oneself to doing致力于做…,he和devote是主动关系,用现在分词做状语。选B。
点评:现在分词还是过去分词做状语主要取决于动词和逻辑主语的关系:如果动词和逻辑主语是被动关系,用过去分词,如果动词和逻辑主语是主动关系,用现在分词。这题要注意,如果没有himself,就应该选A。
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