Let’s learn to use the problem we are facing a stepping-stone to future success.
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A
to
B
for
C
as
D
by
推荐题目
Early ＿＿＿the morning of May 1, we started off＿＿＿the mountain village.
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A
in； for
B
in； t?
C
on；／
D
on； for
The USA and some other countries helped the rebels in Libya ____________ their promise to support democracy (民主) and fair trade.
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A
in danger of
B
in memory of
C
in peace for
D
in return for
Gun control is a subject ________Americans have argued for a long time.
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A
of which
B
about which
C
with which
D
into which