题目内容：

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Nowadays, the cellphone has become1.common means of communication. However, the ringing is really disturbing. The ringing usually2.(interrupt) my thinking and also your classmates’. But this helps me understand the importance of letting you, my students, know how to use cellphones in a proper way. There are a few things you need 3. (remember) if you hope to use your cellphone4.(polite). First, never answer a call in the middle of a conversation, unless you ask for his or her5.(permit) first. Talking on the phone and making6.(other) waiting is bad manners. Second, if you send text messages while you7.(talk) with someone, it shows that you do not respect the person you talk to. Third, if you talk loudly in public places, it will make other people8.(annoy). No one really wants to listen to what you have to say. The last and most  important thing is to switch your cellphone9.the silent mode (模式) in class,10.is a good classroom manner.