单项选择题

The growing size of the population is______major concern of______society nowadays.

A．/, the
B．a, /
C．a, the
D．the, the
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What you have said cannot be______to my small firm.
A．supplied
B．used
C．applied
D．practiced
单项选择题
After several days of isolation on the deserted island, the sailor began to______of ever getting back home.
A．disappoint
B．displace
C．depress
D．despair
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