When it comes to gossip(流言蜚语), learn to keep your mouth shut ________ you'll avoid trouble.
#30555
A
or
B
and
C
for
D
but
推荐题目
The woman was about to open the door _______ she heard a strange sound from inside.
#32259
A
as
B
while
C
when
D
then
_____ they are fit, I see no reason why they shouldn't go on playing basketball for another four or five years.
#30757
A
In case
B
Provided that
C
Unless
D
As if
-– I wonder how much you charge for your services.--- The first two are free the third costs $30.
#80672
A
while
B
until
C
when
D
before
_______ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.
#79936
A
That
B
What
C
Despite what
D
Though what