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.
点击查看答案&解析
相关考题
-
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. -
单项选择题
A．See an officer.
B．Sign her name.
C．Fill out a form.
D．Play an application fee. -
单项选择题
A．In a bank.
B．In a restaurant.
C．In a supermarket.
D．In a post office.
