Dear Miss Liu,
My mother has been ill for two days, but my father has gone to Shanghai. Nobody in my family can take good care of her. So I have to write to you to ask for leave of one day.
Your student,
Xiao Fei
【参考译文】
亲爱的刘老师：
我妈妈病了两天了，可是我爸爸去了上海，家里无人照顾妈妈。因此，我只好向您请假一天。
您的学生，
小菲
20xx年8月8日