Question

format of a letter (starting,middle and ending) Please answer

Answer 1

format of formal letter:from address
date
to address
salutation
subject
body of the letter
thanking you
yours obidiently signature(your name in block)
format of informal letter:
from address
date 
salutation
body of the letter
yours lovinglysignature(your name in block)Comments Report

Answer 2

Emp, has he started the letter with "Sir" or "Dear Sir"? If it's the latter, I'd say that in itself is wrong: he presumably knows the teacher's name. If he's just written "Sir" as a salutation, then to be honest I don't know what I'd put as a valediction - it sounds as though it might require one of those old-style phrases beginning "I remain, Sir, your ..."

I think he should probably have started the letter "Dear Mr Smith" and signed it off (if he's writing in BrE) with "Yours sincerely". please mark it as a brainlist answer