单项选择题

They are endeavoring to reform the present rules.

A. trying
B. working
C. doing
D. making
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单项选择题
Purchasing the new production line will be a profitable deal for the company.
A. beneficial
B. tremendous
C. forceful
D. favorable
单项选择题
The parents always restrain their daughter from swimming in the nearby pool.
A. allow
B. reduce
C. prevent
D. confine
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