The government decided to take some action _______ the situation turned too bad.
#49281
A
until
B
unless
C
when
D
before
推荐题目
They put their books____to make the library clean and tidy.
#46653
A
under the chair
B
on the floor
C
behind the door
D
in the bookcase
Call Tom ______ 82912356. He has a job for you ______ an actor.
#49578
A
for, for
B
at, with
C
at, as
D
in, as