单项选择题
Questions 14 to 16 are based on the passage you have just heard.
A．Call the front desk.
B．Find your family members.
C．Open the door.
D．Rush out of the building.
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单项选择题
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.
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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