单项选择题

Medical facilities are being upgraded．

A．expanded
B．repaired
C．improved
D．transferred
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单项选择题
She stood there，trembling with fear．
A．jumping
B．crying
C．moving
D．shaking
单项选择题
You have to be patient if you want to sustain your position．
A．maintain
B．better
C．acquire
D．support
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