A loud noise suddenly  hurts your ears while you enjoy a film in the cinema. A stranger makes you jump as he shouts at his friend on the other side of  the city.  Mobile phones are everywhere and sometimes they can be very annoying. Although they are necessities（必需品） of modern life, it is common to hear people complain about（抱怨） mobile phones.
Most public places have mobile phone rules. So try to keep your phone ring as low as possible or put it on vibrate mode（振动模式）. It is good to leave your phone at home when you would be at school or when visiting a hospital.
If you need to make or take a call while in a meeting, at a restaurant or a theatre, go to the washroom. If you are expecting a call, get  a seat near the door. It is polite to tell others at the beginning that you are expecting an important call. When you get a call and you are with friends, keep the call short and speak quietly.
A good way to make sure that people don’t interrupt（打断）you and others is to tell your friends when it’s a good time to call.

根据短文内容，补全表格。

In most public places	Keep your phone ring as   . as possible or put it on vibrate mode.
At school or when visiting a hospital	at home.
In a meeting, at a restaurant or a theatre	If you need to make a call,      . If you are waiting for a call, you should                   near the door.
When you get a call and you are with friends	and speak quietly.