单项选择题

A．go through
B．prolong
C．relieve
D．tighten up
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单项选择题
A．aroundB．awayC．offD．up
A．around
B．away
C．off
D．up
单项选择题
Who should be responsible for local transportation
A．The Federal Government.
B．Local authorities.
C．Local taxpayers.
D．The Transportation Department.
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