单项选择题

A．There was a bomb scare.
B．There was a terrorist attack.
C．A fire alarm was set off by mistake.
D．50 pounds of explosives were found.
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单项选择题
A．The man shouldn’t hesitate to take the course. B．The man should talk with the professor first. C．The course isn’t open to undergraduates. D．The course will require a lot of reading.
A．The man shouldn’t hesitate to take the course.
B．The man should talk with the professor first.
C．The course isn’t open to undergraduates.
D．The course will require a lot of reading.
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