Dear Mr XXX
I'm sorry that I have to ask for leave because my mother fell ill and she is having a high fever.She is in hospital and needs looking after.My father happents to be away on business and he cannot come back until I this Sundy.I have to look after my sick mother for the two days.
I'll be back to school as soon as possible and make up the lessons which I miss.
Yours,
XXX
_________________________________________
亲爱的某某老师
很抱歉我要请两天假,因为母亲发烧在医院没有人照顾,我父亲正好出差在外.这个星期日回来,我不得不请两天假照顾我的母亲.
我会尽早回校上课,补上这两天的功课.
你的学生,
某某某