New ways have been found to prevent the river ______.
#70821
A
not to be polluted
B
against polluting
C
from polluting
D
from being polluted
推荐题目
The little girl was jumping __________ in the kindergarten, waiting for her mother.
#75666
A
upside down
B
back and forth
C
back to forth
D
up and down
—It’s too hot. ---Let’s open the windows to allow the air to_________.
#70489
A
pass
B
cross
C
circle
D
circulate
People’s working efficiency usually decreases more or less when the temperature _________ 35℃ or even higher.
#73425
A
approaches
B
raises
C
draws
D
drops
Car dealers also have a tough time in bad economy. Therefore，they have to ________ their business model to overcome the difficulties.
#73120
A
admit
B
adjust
C
replace
D
remove