_______ I admit that there are still some problems about the traffic in this area, I don't mean that it can't be solved.
#79921
A
While
B
Until
C
Unless
D
As
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Wind power is an ancient source of energy _____ we may return in the near future.
#33026
A
to which
B
by which
C
from which
D
on which
—Which city do you expect to live in? —I don’t mind where I live _____ there is my favorite job.
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A
sothat
B
incase
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asfaras
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solongas
I should convey my appreciation to my high school teachers, without ____ help I wouldn’t achieve such a big success.
#33344
A
whom
B
them
C
which
D
whose