We must do what we can to ____________the river ______________.
#68880
A
protect; against polluting
B
stop; polluting
C
keep; being polluted
D
prevent; from being polluted
推荐题目
The visit of the police was       the lost child.
#71141
A
connected with
B
associated to
C
connected to
D
related with
A railway station is not a place for a child to be ________ at night.
#70968
A
left alone
B
let alone
C
settle in
D
settle down
Does what I said _______ to you? 
#73006
A
make sure
B
make sense
C
make meaning
D
make good