---- I wonder how much you charge for your services． ---- The first two are free ____ the third costs $30．
#32193
A
while
B
until
C
when
D
before
推荐题目
_______ a small number of Australians are bitten by spiders each year, most recover without any medical treatment.
#31526
A
While
B
Unless
C
When
D
Because
The agent was about to sign his name to the document ________，to our surprise，a stranger broke in to prevent him.
#30223
A
while
B
when
C
as
D
until
When a disaster occurs, all people, ________ they are old or young, rich or poor, try their best to help those in need.
#32038
A
no matter
B
whether
C
however
D
even though
He’ll come _______ I promise him to buy that new dictionary.
#33514
A
so long
B
on condition that
C
as soon as
D
by the time
Doctor Smith has made another wonderful discovery, _______ great importance.
#30394
A
which I think is of
B
which I think it is of
C
which is I think
D
I think which is