问题补充:
himself to his research on the IT technology, he soon made a breakthrough.
A. Devoted
B. Devoting
C. Devote
D. To devote
答案:
A. Devoted
(答案→)B. Devoting
C. Devote
D. To devote
解析: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。