【单选题】

The cellphone, a device we have lived with for more than a decade, offers a good example of a popular technology’s unforeseen side effects. More than one billion are (1) use around the world, and when asked, their (2) say they love their phones for the safety and convenience (3) provide. People also report that they are (4) in their use of their phones. One opinion survey (5) that "98 percent ofAmericans say they move away from (6) when talking on a wireless phone in public" (7) "86 percent say they ’never’ or ’rarely’ speak (8) wireless phones" when conducting (9) with clerks or bank tellers.Clearly, there exists a (10) between our reported cellphone behavior and our actual behavior.

Cellphone users that is to say, most of us are (11) instigators and victims of this form of conversational panhandling, and it (12) a cumulatively negative effect on social space.As the sociologistErving Gotfman observed in another (13) , there is something deeply disturbing about people who are" (14) contact" in social situations because they are blatantly refusing to (15) to the norms of their immediate environment. Placing a cellphone call in public instantly transforms the strangers around you (16) unwilling listeners who must cede to your use of the public (17) . a decidedly undemocratic effect for so democratic a technology. Listeners don’t always passively (18) this situation: in recent years, people have been pepper-sprayed in movie theaters, (19) from concert halls and deliberately rammed with cars as a result of (20) behavior on their cellphones.
A．of
B．for
C．in
D．by