假使你是陈鹏，要写一封请假信，相关内容如下：
1.写信的目的——请假5天（写明起止日期）
2.请假的理由——家人生病需要你去照顾
3.希望能准假
Dear Sir,
I am writing this letter to ask for your permission of five day's leave from my work, from the 10th,April to the 14th,April.
My father has been suffering a illness for several years and he was given an operation last week, so as his only child, have to stay at hospital to look after him.
I sincerely hope you can fully understand the necessity of my leaving and give me your permission. Thank you very much.
Yours sincerely
Chen Ping
Dear teacher：
hello!I am your students lili, the teacher body also ok! I believe that the teacher you must understand the importance of family, so I ask. There was phase Recently, my mother is sick, very serious. Mom need I care, I again is a filial children, so I hope the teacher can permit me false, let me to take care of me that his sick mother. Although will impact study, but I believe the teacher you will understand me, after all sick is my mother, hope the teacher must quasi false. To please 5 days, concrete is April 6 to 11 (to date) differ, hope the teacher must false.
I wish the teacher
health
Your students: Chen Ping