假如你是李华， 听说你的同学Tom吸烟， 给他写一封建议信，包括以下内容：
1. 吸烟对自己和周围的同学、老师都有害，影响健康。
2. 吸烟浪费钱和时间，中学生应该珍惜时间努力学习。
3. 已经吸烟成瘾的要下决心戒烟。
4. 当你因不吸烟而感到焦虑和紧张时，做深呼吸或做一些放松活动。
5. 把注意力转移到学习上。
Dear Tom,
I’m sorry to hear that you have got into the habit of smoking. ________________
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Yours,
Li Hua
