Answer:
Didn't is a contraction for did not, and means the same thing. Contractions generally carry a connotation of informality. Decide on the right level of formality for the audience, and use the appropriate form. (For instance, in most spoken language didn't is more common; did not is more common in formal writing.)
Calm and deliberate is most likely the answer
It's B dude. A. isn't right and b just seems the most reasonable.
Answer:
maybe it's maturing I don't know perfectly whether it is correct answer or not
A hook is used in the "introduction" to interest the reader in what he is going to read in the following paragraphs.