单项选择题

It’s sensible to start any exercise program gradually at first

A．workable
B．reasonable
C．possible
D．available
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单项选择题
The index is the government’s chief gauge of future economic activity
A． measure
B．opinion
C．method
D．decision
单项选择题
The girl is gazing at herself in the mirror．
A．smiling
B．laughing
C．shouting
D．staring
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