I hate traveling by air ______ you usually have to wait for hours before the plane takes off.
#31027
A
because
B
though
C
until
D
unless
推荐题目
____ you know your potential（潜力）, you have to rely on many other people to get to where you are.
#34342
A
While
B
Since
C
If
D
Where
The medicine works more effectively_____you drink some hot water after taking it.
#80414
A
as
B
until
C
although
D
if
________ reducing pullution, man should pay more attention to conserving energy.
#79708
A
As well as
B
As long as
C
As far as
D
as soon as
—You seem to have had that car for ages.—Yes, I should sell it_________ it still can run.
#31831
A
before
B
after
C
until
D
while