Traffic restrictions have come into effect in Beijing      to improve thecapital’s air quality and traffic situation for the 2008 Olympics.
#28411
A
in order that
B
in an attempt
C
at an attempt
D
in a try
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The poor man’s life was _________  the king.
#26579
A
at the mercy of
B
at the call
C
at the service
D
at the experience