Formal letters differ in some key ways from e-mail and even from professional memos. The purpose of a formal letter is often serious: It may be a formal application for a job, a formal statement ...

A formal letter or email would have a standard greeting ... ‘do you wanna’ instead of ‘do you want to’. Standard English close Standard EnglishA form of speech or writing that is ...

The writing portion of the English HKDSE exam ... a report or proposal would require a formal tone, while a personal letter would be casual, and a speech is somewhere in the middle.