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1、开头：Dear Mr/Ms XXX.
2、正文：Today I'm writing to you to ask for a five-day leave, for I've got cold last night with carlessness.This morning my mother took me to see the doctor,who told me to stay in bed for some days. So I am very sorry to be absent from school, especially your interesting lessons. I'll be sure to make up for the missed lessons after I recover from the illness.
3、落款：Yours ever,XXX.
天气预报查询提供全国天气预报,旅游天气预报,国际天气预报,天气资讯 ,天气预报网数据来源中国天气预报网，天气预报查询仅供参考!