Question

3. In order to make a major breakthrough,the seriously sick scientist decided to        as much time to the rice research as he could but refused to stay in hospital.

   A. decline   B. expand   C. guarantee   D. devote

Answer 1

3. D句意为："为了取得重大突破，这位病重的科学家决定尽可能多地利用时间来进行水稻研究而拒绝住在医院里。"decline意为"减退，下降"；expand意为"扩大，膨胀"；guarantee意为"保证"；devote意为"致力于，专心"。根据句意，devote为最佳答案。