Vehicle designers are well aware that they need to ______ the idea of cars that have a low environmental impact.
#11899
A
end up with
B
put up with
C
keep up with
D
come up with
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He devoted all the money he had _________a school.
#13201
A
set up
B
to set up
C
to setting up
D
setting up
During the war, people here _____ much pain. 
#12800
A
are suffered
B
suffered
C
were suffered
D
had suffered from