Answer:
False
Explanation:
I don't think they need to be written, maybe it would be more formal if it were important but it wouldn't really make a difference if it were written or not. Also this generation can text or call 24/7 and it's usually common to invite someone by texting or calling.
The answer is
2.research skills
Inform: The author includes mainly facts and information.
Entertain: The author uses humor, narration, tells a story, etc.
Persuade: The author tries to get the reader to believe, think, feel, or do something.
Syntax is essential to any form of language without syntax there would be no setting