Dear Mr. Wang,
I am very sorry that I shall be unable to come to your classes today owing to a bad cold. I enclose a certificate from the doctor who is attending me. He said it will be two or three days before I shall be able to resume my school.
David
April 20
Oct. 7, 200
Director Hu,
A telegram has just come to hand saying that my mother is serious ill and urging me to go home at once. Because of this I should very much like to have a leave of three days beginning on Oct. 8. I hope that my request will be given due consideration.
Chen Xingxing
Encl: a telegram from my home
7 July
Dear Mr. Smith,
On account of an attack of the flu with a severe headache, I shall be unable to attend classes today, for which I submit a certificate from the doctor. I shall be much obliged if I can get your permission.
Respectfully yours,
John Warner