During the Spring Festival, the police are ______ the public safety.
#66394
A
getting through
B
working out
C
watching over
D
looking into
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Look, the lights in the room don’t     . Someone must forget     . 
#72001
A
put out; going them out
B
be out; put them out
C
go out; to put them out
D
go out; putting them out
The official made the demand that the soldiers _____ at once ______ battlefront. 
#81896
A
leave; for
B
leave; to
C
left; to
D
to be left; for