邮件标题（一定要写标题，这个特别重要！）：
Leave application，Ask for leave或者Sickleave
正文部分：
Dear Mr/Mrs/Miss XXX，
I am(你的名字)，a student of(课程名)，my student number is（你的学号）.XXXXX（此处省略请假理由，下面详细记述）.I am writing to apologize for my absence from class and please let me know if there is any problem with the timing.
Thank you very much for your consideration.
Yours sincerely,
你的名字
请假理由大全
1、I have a stomachache today probably from the sashimi I had last night.I'll be working from home and available online.（如果与老师很熟建议直接讲明请假原因)
2、I got some family issues that I need to take a day off.（除了病假之外，如果有事情也可以请事假）
3、I have a serious cold,today.Whatever it is I’ll be working from home to fend for myself to keep the team safe.
最后请注意，就算是请假，大家也尽量在邮件强调一下，可以网上完成工作或学习计划。
