Answer:
The sentence explains a time of struggling when we get nothing at the end and are brought back to our past or near past. Like a boat which is continuously rowed but is found at the same place at the end of the day.
Explanation:
This refers to the dualities of Gatsby and America. Nick is saying he will get into Gatsby's boat, the one that only sailed backwards on the sea of history--into the past to recapture his childhood dreams.
This book was written in 1922 and accordingly it was a time of struggling. In the boat rowing a continuous struggle is required to move it forward, likewise a continuous struggle was required in 1922 to improve the country's situation. But everything seemed useless as the struggle took them to their past to a place from where they had begun.
Annihilate and decimate both mean to destroy something or someone, but annihilate means to destroy something as a whole, and at a bigger scale, while decimate doesn't have to mean destroying the whole thing.
Eradicate and massacre are both violent words with the intent to convey destruction, but eradicate is a more general term, as massacre is meant to simple destroy/kill a large group of people.
The sentence that contains a misplaced or dangling modifier is the one that follows:
B. Being from a small town in Wisconsin, the subway was a new experience for Matt.
All the information which appears before the comma (being from a small town in Wisconsin) seems to be related to the subway, and not to Matt, since "the subway" appears right after it. Obviously, the purpose was to use a modifier (the whole clause, in this particular case) in order to give information about Matt, and not about the subway. A better way to convey the idea originally intended would be:
Being from a small town in Wisconsin, Matt experienced the subway as something new.