Dear Teacher Huang,
I am still lying in bed with the flu and unable to get up. I enclose a certificate from the doctor who is attending on ① me, as she fears it will be another two days before I shall be able to resume my study. Please give an extension② of leave for as many days.
Your student,
Liu Xiaomei
因篇幅问题不能全部显示，请点此查看更多更全内容