Hehasmadeuphismindtodevoteallhecould

问题详情：

 He has made up his mind to devote all he could _______ pollution _______ happily.

   A. to prevent; to live                             B. to prevent; from living

   C. to preventing; to live                        D. to preventing; from living

【回答】

C

知识点：其他

题型：选择题