You could use definition or root word to better understand the word or to learn what it means.
By repeating certain words he says back to him
The correct answers would be "using contractions, slang terms, and colloquial expressions" and "using expressive punctuation". This way the writer brings the topic closer to the reader by making it "sound more like conversation". If you use "formal rules of grammar", it does not sound like a conversation, and "underlining words for emphasis" only draws your attention to those words. Mentioning your friend in the letter doesn't really affect anything.
Some prefixes are pre, post
Answer:
sneezing
Explanation:
I say this because of the last sentence, No matter how hard you try to go against it, it still comes out. You still end up sneezing.
