为了使同学们更加健康快乐地成长，学校决定向同学们征求建议。假如你是刘波，用英语向校长写一篇80个词左右的建议信。注意：文中应包含所有要点，并适当发挥；不能出现真实的校名和姓名。开头和结尾已给出，不计入总词数。 

Dear Headmaster,
I’m very glad to write a letter to you. These days we are talking about how to have a better school life. Here are some of my suggestions. First, I hope our school will______________________________
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Hope my suggestions will be helpful. Thanks for reading my letter!
Yours sincerely,
Liu Bo