. He made up his mind to devote his life____________the river____________polluted.
#97630
A
to prevent, to be
B
to prevent, from being
C
to preventing, to be
D
to preventing, from being
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________ a bike, she cycled home.
#96164
A
Bought
B
To buy
C
Being bought
D
Having bought
. He said he would rather not _______ it right now. 
#98775
A
doing
B
to do
C
do
D
to be doing