用英语给校长写一封信（关于手机）

Dear headmaster:
I think our school should not have an idea of taking mobile phones anymore.They can bring us some problems.What`s more,some mobile phones may be stolen.
In brief,I think we ought not to take mobile phones.
Your sincerely,
XXX

dear principal,
In my opinion,mobilephone should be brought in school.students often need to call their parents or their relatives with some important and immediately to solve's problem.
I think students that bring their mobilephone to school should turn off the voice of the mobilephones during the school time.

Thank you for your focus to this letter.

Yours sincerely,
(你的班,你的名字)

dear 校长：
I 认为 mobilephone 应该能带，但上课 should 关机

你给这么多 没办法写- -