In America．a friend's inviting you to a restaurant doesn't mean that he or she will pay for the meal you are told in advance．
#32275
A
unless
B
if
C
although
D
until
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_____ you keep on working hard, I don’t mind whether you get good marks in your class.
#80479
A
As long as
B
As soon as
C
As well as
D
as far as
I think you could complain, _______, of course, you are happy with the way thing s are.
#32612
A
which
B
that
C
unless
D
where
How can you expect him to make any progress ________ you never give him a chance to have a try?
#29958
A
when
B
unless
C
even though
D
until