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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You have to be patient if you want to sustain your position.
A．maintain
B．better
C．acquire
D．support
单项选择题
John is eligible for this job.
A．accepted
B．qualified
C．rejected
D．recommended
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