The verb, I assume, is "flew" and the tense is A. past.
if it was any of the other options, "fly: would be in a dfferent form :
B. present
he flies
C. present
<span>
participle
he did something, flying
D. past participle
he has flown
</span>
The author's shift in tone between the paragraphs was a transition between B. exemplifying simplicity and demonstrating complexity identifying problems and proposing solutions.
<h3>What is tone?</h3>
In literature, it should be noted that that a tone simply means the word choice that influences the mood in a story.
In this case, the author's shift in tone between the fourth and fifth paragraphs was a transition between exemplifying simplicity and demonstrating complexity identifying problems and proposing solutions.
Learn more about tones on:
brainly.com/question/15447799
I believe it is C. But I am not quite sure
Antecedent of a pronoun is a word that the pronoun refers to, or replaces. So, in this sentence, we are looking for the antecedent of the pronoun IT. The pronoun IT replaces the noun Chicago, which means that the word Chicago is the antecedent of the pronoun IT.
IT provides the best opportunity, meaning that Chicago does that.
I believe the answer is D as well. Hope this helps