The man in black was about to set fire to the house ____ the police came.
#33709
A
while
B
after
C
before
D
when
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--- I wonder how much you charge for your service. --- The first two are free ______ the third costs $30.
#32246
A
while
B
until
C
when
D
before
(2014·四川巴蜀名校联考)—I’m worrying about the coming examination.I’m afraid I cannot pass it.—________！I’m sure you’ll make it.
#30039
A
Go ahead
B
Good luck
C
No problem
D
Don’t lose heart
This building is both a secret and a mystery. No one shall be admitted into it ______ he can give the right password.
#32225
A
if
B
as
C
since
D
unless
— What should I wear to attend his wedding party?— Dress _______ you like.
#80086
A
what
B
however
C
whatever
D
how