The woman was about to open the door ____________ she heard a strange sound from inside.
#32002
A
as
B
while
C
when
D
then
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--- The MP3 cost me about 2,000 yuan. --- Well, it was crazy of you to spend so much money_____you could buy a cheaper one.
#32857
A
when
B
unless
C
if
D
because
__ unemployment and crime are high, it can be assumed that the latter is due to the former.
#80573
A
Before
B
Where
C
Unless
D
Until
______ you make a promise, you should keep ______.
#33692
A
Once… it
B
If… it
C
When … one
D
Although … one
______all of them are strong candidates, only one will be chosen for the post.
#30864
A
Since
B
As
C
If
D
While
