The agent was about to sign his name to the document_______ , to our surprise, a stranger broke in to prevent him.
#31424
A
while
B
when
C
as
D
until
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She stepped into the bedroom quietly _____she might wake up her roommates.
#79933
A
for fear that
B
so long as
C
on condition that
D
in order that
_____ others might have been satisfied, Johnson has higher ambitions.
#30892
A
What
B
Which
C
As
D
where
Professor Hawking stepped into the office I knew that there was no hope.
#31869
A
Unless
B
Now that
C
Although
D
The moment
_______environmental damage is done, it takes many years for the ecosystem to recover.
#31390
A
Even if
B
If only
C
While
D
Once
The young couple are trying to save as much as possible ________ they can afford a flat by the end of next year．
#33431
A
so that
B
even though
C
in case
D
as if