编写一封邮件向你的老板请假
你的老板姓名是John Smith，你需要请3天的假期，因为你需要照顾生病的家人。
Subject: Request for Leave of Absence

Dear John,

I am writing to request a three-day leave of absence from work, starting from [insert start date] to [insert end date]. Unfortunately, a family member of mine is currently unwell and I need to take care of them.

I have completed all the necessary tasks and delegated responsibilities where necessary, to ensure a smooth handover of duties during my absence. I will be available through email and phone if there are any urgent matters that require my attention.

Thank you for your understanding and support during this difficult time. I will return to work on [insert return date] refreshed and ready to resume my duties.

Sincerely,

[Your Name]