我要写一封感谢信（用英语）

题目

我要写一封感谢信（用英语）
Dear luo:
Thank you for your help!You let me know how to study.If you tell me the more for studying,the higher store I will get.You are my good friend.And you are my teacher,too.
Thank you again!
Yours,
Feng
大家帮我修改修改,不改变意思,看看有没有错?

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