All her time _______ experiments, she has no time for films.
A. devoted to do B. devoted to doing
C. devoting to doing
All her time _______ experiments, she has no time for films.
A. devoted to do B. devoted to doing
C. devoting to doing
B
(1) devote 意为“致力于，献身于”，主要用 devote…to…或be devoted to，其中的to 是介词，不是不定式符号，故后接动词时要用动名词，不用不定式。(2) 选A错误：若将 do 改为 doing 则可以。(3) 选B正确：all her time devoted to doing experiments为独立主格结构，用作状语。(4) 选C错误：因为all her time 与 devote 为被动关系，故应将devoting改为devoted。(5) 选D错误：若单独看 All her time is devoted to doing experiments，此句并没有错，但问题是逗号前后两个简单句没有必要的连接方式，所以从整体上看仍不对，假若在后一句的句首加上and或so，则可选D，或将D将中的is 改为 being也可选它。