单项选择题

______, he realized he made the right decision.

A．Before long
B．Long before
C．After
D．Before
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单项选择题
______ something should go wrong, what would you do then
A．Supposing
B．Supposed
C．To be supposed
D．To suppose
单项选择题
The survey found that Hungary ______as the most environment-conscious country of East Europe.
A．broke out
B．held out
C．ran out
D．stood out
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