“急求”一篇英语保证书

我上英语课玩手机被捉所以帮帮忙弄篇就是以后上课不玩手机不说话不睡觉！一百子就行顺便带上汉语，谢拉！

I know it was not good to play mobile in class.It was impolite to you as well as influenced other students at the meanwhile.I should do what a student must do,that is studying is the most important thing to me now and must obey the school rules.Here,I feel very sorry for my behavior,hope you can forgive me and give me a chance.I will try my best to change myself.I won't play mobile in class.What is more,I will no longer speak and sleep in class.I will make myself pay attention to studying and don't make the same mistake any longer.

我知道上课玩手机是不好的，这样是对老师的不尊重，同时也会影响其他同学。我应该做一个学生必须做的事情，那就是把学习放在第一位和遵守校规。在这里，我对我的所作所为道歉，请原谅我，请给我一次改过机会。我将改变我自己，努力做到上课不玩手机，不讲话，不睡觉。我会集中精神上课，以后不再犯同样的错误了。