题目内容：
Do you know how to use a mobile phone without being rude to the people around you?Talking during a performance irritates (激怒) people. If you are expecting an emergency call, sit near the exit doors and set your phone to vibrate (振动),回答
A
.
When eating at a restaurant with friends, 回答
B
. This conveys the message that your phone calls are more important than those around you.
Mobile phones have sensitive microphones that allow you to speak at the volume you would on a regular phone.回答
C
.If you are calling from a noisy area,回答
D
.Many people believe that they can’t live without their mobile phone.回答
E
, but limit your conversations to urgent ones and save the personal calls until you are at home.
参考答案：