单项选择题

Questions 22-25 are based on the following monologue. Why do smokers welcome low-tar cigarettes

A．Because they are less harmful.
B．Because they cost less.
C．Because they taste better.
D．Because they last longer.
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单项选择题
How did the woman react to Tom’ s idea
A．She wonders if she can afford it.
B．She doesn’ t want to bother Tom’ s roommate.
C．She thinks it won’ t work.
D．She thinks it’ s a good one.
单项选择题
How often will the woman correct the students’ assignment
A．Once a week.
B．Once two weeks.
C．Once a month.
D．Once three weeks.
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