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 We had not waited __________ she came.
#30160
A
long before
B
before long
C
after long
D
soon after
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My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”
#80007
A
until
B
before
C
while
D
after
He must be from America, ____ can be judged from his accent.
#33269
A
that
B
which
C
it
D
where
You can get the best result ______you carry out the experiment under the desired conditions.
#31006
A
what if
B
even if
C
only if
D
as if
 He had to sell his luxury car, ________ his company was in debt.
#31135
A
before
B
until
C
while
D
for
I’d like to arrive 20 minutes early      I can have time for a cup of tea.
#31258
A
as soon as
B
as a result
C
in case
D
so that