He made up his mind to devote his life _____ pollution ______happily.
#65216
A
to prevent; to live
B
to prevent; from living
C
to preventing; to live
D
to preventing; from living
推荐题目
These tress ________ and also ____________. 
#71076
A
need trimming(修剪); need to water
B
need to trim; need watering
C
need trimming; need watering
D
need be trimmed; need be watered
If you ______ your promise,the results will be sure to satisfy you.
#82786
A
carry out
B
carry on
C
keep up
D
make up