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-– 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
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The suggestion          we should have a discussion on this problem is not the one ________he made.
#32023
A
that, /
B
/, which
C
which, that
D
which, /
 ______ you make a promise, you should keep it.
#31679
A
The moment
B
While
C
Once
D
As if
You must learn to consult your feelings and your reason ________ you reach any decision.
#31191
A
although
B
before
C
because
D
unless
_______ we got to the station, the train had left already.
#30920
A
If
B
Unless
C
Since
D
When
I always take something to read when I go to the doctor’s __________ I have to wait.
#80644
A
In case
B
so that
C
in order
D
as if