尊敬的陈老师：
您好!我201x级某某(专业名称)专业的张某某(姓名)。
因________(请假理由)不能上X月X日的(课程名称)。特此请假。请批准。
此致
201x级专业班
请假人：张某某
201x年xx月xx日
Dear Mr Li
I beg to apply for two days’ leave of absence from the 7th to 8th of this week.
I’m sorry to tell you that because I was seriously ill--suffering severe headache, I want to return/go home to see the doctor. As regards the lesson to be missed during my absence, I will do my best to make them up as soon as I get back from leave.
To support my application, here I herewith/enclose the sick leave certificate.
I should be very much obliged if you will grant me my application.
Yours respectfully, Li Hua
Dear Mr/Mrs/Ms (teacher):
I am writing this letter to ask for your pardon for my absence in your class.
As CET-6 is around the corner,I realized how much I am lagged behind for my preparation schedule. The only choice I have is to borrow some time from my classes for this upcoming exam which is so important for me. I am terribly sorry that I cannot make to your class, and I would be grateful for your understanding.
Thank you for your understanding and I do appreciate ir very much. I will make every effort in making up what I may miss from your lesson.
Yours
