June 19,Thursday
Mr.Johnson,
I'm so sorry that I have to ask for leave,because I have get a serious cough and I wan to see a doctor.
Most of the work has been completed,so I would like to ask a leave in Firday.I will give you a call after I go back form the hospital.
I'm so sorry to bring you so much trouble and I hope you can permit it.
Liubin