Every means _____ prevent the water from _____.
#85804
A
are used to; polluting
B
will be used to; polluting
C
is used to; polluted
D
is used to; being polluted
推荐题目
 _____________ they _____________ playing basketball?
#44143
A
Are, like
B
Do, like
C
Do, liking
D
Are, likes
We can see only one of the doors ______.
#44082
A
are opened
B
is closed
C
closes
D
are closed
The population of this city, 30% of which_______, ______ 10% in the last two years. 
#86017
A
are Chinese; has risen by
B
are China; has fallen by
C
is Chinese ; have increased
D
is China; have reduced by