单项选择题

Difficulties and hardships have （） the best qualities of the young scientist.

A．brought forth
B．brought up
C．brought out
D．brought about

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单项选择题

As her husband is on a business trip and her son is at school, she feels rather （）.

A．lonely
B．alone
C．singular
D．single

单项选择题

Crime is increasing worldwide, and there is every reason to believe the （） will continue into the next decade.

A．emergency
B．trend
C．pace
D．schedule

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