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
请假条
张老师：
您班学生孙浩，因突然高烧呕吐，要上医院治疗。今天不能到校上课。特此请假。
此致
敬礼!
学生家长：孙正平
学生家长：孙正平
××年×月×日
老师：
学校规定要同意购买意外保险，我的相关证件都在老家，所以我请假一天回家取各种证件，请老师批假。
请假人：
X年XX月XX日
Dear le，
I would like to know if I could ask for a casual leave of absence from your Oral English class this Wednesday morning.
Yesterday evening I got a phone call from my cousin, who is now running a small firm in suburbs of this city. He needs an interpreter for two days but cannot find the most reliable person, so he wants me to have a try. Personally, I regard this as a golden opportunity to put what I have learned in your class into practice, but I need your permission of absence. If you think I may go and help him get over the difficulty, I am confident that I’ll do a good job and both of us will be grateful.
Thanks. Your kind permission will be greatly appreciated.
Earnestly yours，
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
