I’m writing to you about your article in last Sunday’s newspaper, “Cell Phones Make Life Easier.” You did an excellent job explaining the good points of cell phones. They’re convenient and very helpful in business. We feel safer always being able to call someone. On the other hand, you didn’t talk about their bad points 【小题1】. Thus, I hope you’ll let me give your readers some advice on cell phone etiquette（礼仪）.

The first point I’d like to address is loudness. When talking face to face 【小题2】, you wouldn’t shout. Likewise, don’t shout when you talk on your cell phone in public. In fact, the microphones in cell phones are so sensitive that you can be heard even if you speak 【小题3】. Furthermore, keep your ringer nice and quiet, and don' t let it ring in meetings, at the movies, etc.

Another point that needs to be made is to deal with personal space. I think it is very impolite to make calls in small spaces or 【小题4】 rooms. This makes others uncomfortable and forces them to listen to your personal business. That’s why I use my cell phone at least three meters away from other people except in emergencies.

Lastly, let me draw your readers’ attention to the dangers of doing two things at the same time. For example, cell phones and 【小题5】 are a bad combination（组合）. Pay attention to the road! Besides, cell phones can cause you to neglect good friends. Give friends who are with you your full attention. Turn off your cell phone and enjoy their company!

Sincerely,

AmberJala