Answer:
this is a vague question.
formal writing always needs complete sentences with a verb, subject, and complete thought. Also formal writing discourages passive writing. Avoid using "you" in formal essays. Always start a sentence with a capital letter, end with a period in essays and a period question mark in emails. explanation mark are rarely used in both situations.
Step-by-step explanation:
I hope this helped! next time don't be so vague.