20. The rest of his life was devoted ___ pollution ___more happily .A.to prevent , to liveB.to prote

题目简介

20. The rest of his life was devoted ___ pollution ___more happily .A.to prevent , to liveB.to prote

题目详情


20. The rest of his life was devoted ___ pollution ___more happily .
A.to prevent , to liveB.to protecting , from living
C.to protect , from livingD.to preventing , to live
题型:单选题难度:偏易来源:不详

答案

D

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