单项选择题

You have to be patient if you want to sustain your position.

A．maintain
B．establish
C．acquire
D．support
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单项选择题
He is renownedfor his skill.
A．remembered
B．recommended
C．praised
D．well-known
单项选择题
The room is dimand quiet.
A．tiny
B．pleasant
C．dark
D．agreeable
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