单项选择题

George Snyder was a firefighter.

A． Right
B． Wrong
C． Not mentioned
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单项选择题
Medical facilities are being upgraded.
A．expanded
B．repaired
C．improved
D．transferred
单项选择题
In order to improve our standard of living, we have to accelerate production.
A．involve
B．decrease
C．speed up
D．give up
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