在有机农场工作是什么样的体验？
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1 . How many American teens own a mobile phone of some sort？
A.
15%.
B.
73%.
C.
88%.
D.
92%.
2 . What is the main idea of paragraph 2?
A.
Mobile phones are a major part of teens' lives today.
B.
A music-playing device in your pocket is necessary.
C.
It's really very easy for the teens to stay online often.
D.
Teens should stay online as long as 15 hours a day.
3 . When Amy Treadwell said “They're interacting, but not interacting” in paragraph 3, she means ______.
A.
girls talked with each in the car
B.
girls spent their time on cellphone
C.
girls should be given cellphones
D.
girl weren’t good at making friends
4 . The underlined word “upside” in the last paragraph may mean ______.
A.
harm
B.
difference
C.
knowledge
D.
advantage
5 . What did Costello ask her daughter to promise?
A.
She should let her mother know more about her.
B.
She should let her mother follow her on media.
C.
She should let her mother understand what's hot.
D.
She should let her mother know Baby Boomers.
