题目内容：

假设你是高中生李越，有感于校园中存在的随意涂写（to scribble) 和乱丢垃圾（to litter)的行为，请用英语给校长写一封100-120个词的信。信中应包括以下内容：

1. 说明写信目的；

2.  对这些行为进行批评；

    3. 提出建议。

注意：信的抬头、落款及信得第一句已给出（不计词数）。

June 8 , 2011

Dear Mr. Headmaster ,

I am Li Yue ,a student from Class 1 ,Senior II .__________________

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Yours faithfully

Li Yue