It’s known ___ us that a mouse has a good nose ___cheese.
#25929
A
for ; for
B
to ; for
C
by ; to
D
by ; at
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________your help，how could I have passed the difficult interview!
#26897
A
But for
B
Thanks to
C
Owing to
D
As to
In the experiment we kept a watchful eye ________ the developments and recorded every detail.
#28560
A
in
B
at
C
for
D
on