___________ that the government can lead them out of the financial crisis, people are optimistic about the future of the country. 
#99013
A
Convincing
B
Convinced
C
To convince
D
Having convinced
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— My leg hurts a lot.— You’d better go to the doctor and have it _____. 
#91407
A
examine
B
examined
C
examining
D
to be examined
. 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