单项选择题

Ever since he arrived, he （） constantly about the weather.

A．complained
B．has been complaining
C．is complaining
D．had been complaining

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单项选择题
Corruption in government was exposed through the agency of the press.（）

A．Dishonesty
B．Virtue
C．Prejudice
D．Diligence
问答题
Outline:1. Necessity of economic reform2. The benefits brought about by economic reform3. Economic reform should continue
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