Dear Director,
I beg to apply for one’s week’s leave of absence from the 1st to 7th instant, both days inclusive, in order to return home to see my grandfather, who is now serious ill. To support my application, I herewith submit the telegram received from my father last night.
Respectfully,
James Smith
Dear Mr. Brown,
I beg to inform you that I shall be unable to come to school / your class today because of an important business in the family.
Your loving student
J. Smith
Dear Mr/Ms XXX;
Today I'm writing to you to ask for a five-day leave, for I've got cold last night with carlessness.
This morning my mother took me to see the doctor,who told me to stay in bed for some days. So I am very sorry to be absent from school, especially your interesting lessons. I'll be sure to make up for the missed lessons after I recover from the illness.
Yours ever,
XXX.