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. Ill be sure to make up for the missed lessons after I recover from the illness.
Yours ever,XXX。
2、尊敬的先生/女士：今天我向您請壹天假，因為我昨天晚上不小心感冒。
今天早上，我媽媽帶我去看醫生，醫生告訴我要在床上呆幾天。所以我很抱歉沒有從學校，特別是妳有趣的課。我從病中康復後，壹定會彌補錯過的課。
妳永遠的朋友，XXX。