单项选择题
Questions 17 to 20 are based on the passage you have just heard.
A．Understanding the negative health effects.
B．Avoiding using them in the pubic places.
C．Having good cell phone manners.
D．Never telling their phone number to a stranger.
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单项选择题
A．The business that provides a service to students.B．The company that is building new houses on campus.C．The company that is directly related to their own countries.D．The business that has a construction project on campus.
A．The business that provides a service to students.
B．The company that is building new houses on campus.
C．The company that is directly related to their own countries.
D．The business that has a construction project on campus.
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单项选择题
A．He lost his way to the railway station.B．Jane asked him to drive her to the railway station.C．Jane helped him to catch the train.D．He agreed to take Jane to the railway station.
A．He lost his way to the railway station.
B．Jane asked him to drive her to the railway station.
C．Jane helped him to catch the train.
D．He agreed to take Jane to the railway station.
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