单项选择题

It is generally believed that swimming is one of the best ways for a person to _________ good health.

A．reserve
B．sustain
C．preserve
D．maintain
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单项选择题
Have you ever bought something just because the salesmen _________ it
A．talked you from
B．talked you into
C．talked you in
D．talked to
单项选择题
They bought the land with a _________ to build a new office block.
A．purpose
B．view
C．goal
D．reason
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