单项选择题

In some eases, your instructor may tell you the topics ______ or may give you a choice of top. les to write about.

A．in advance
B．ahead of
C．above all
D．right away
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单项选择题
Americans are now taking steps to solve the problem of alcoholism by ______.
A．decreasing the amount of alcohol dnmk by drivers
B．teaching young students how to drive safely after drinking alcohol
C．punishing people more heavily for driving after drinking alcohol
D．giving special courses to teach doctors about new drugs and treatments for alcoholics
单项选择题
In the United States today ______.
A．alcoholism is not a major social problem
B．there are no more than a million alcoholics
C．the problem of alcoholism costs thousands of millions of dollars every year
D．alcoholism has caused a million automobile accidents a year
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