In the Great Depression, the American government couldn’t find good solutions _____ the unemployment problem.
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A
of
B
to
C
on
D
about
推荐题目
 _______ the school, he saw his parents ________ for him at the school gate.
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A
At reaching; waited
B
On arriving; waiting
C
At arriving; waited
D
On reaching; waiting
You can see a church ________.
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A
at a distance
B
in the distance
C
for a distance
D
from the distance
We didn’t plan to meet. We met ________ in the street. 
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A
by the way
B
by chance
C
on purpose
D
in surprise