Indefinite pronouns are used to refer to nonspecific people, things or places. In this way, the speaker uses -body or -one to refer to people, and -thing to indicate objects. As a general rule, these pronouns are consider to be in the singular form so the verb has to agree with it.
It is important to highlight that “Nothing” is used in negative sentences (example: Nobody worked yesterday.)
"Something" is used for unknown or nonspecific object and it is appears in affirmative sentences.(Example: I saw something in the kitchen).
“Everything” is used to refer to a total amount of nonspecific objects and it appears in affirmative sentences.(Example: I bought everything yesterday).
Most likely to appeal to the reader’s emotions
Why was he studying?
When was he studying?
How was he studying?
With who was he studying?
Where was he studying?
The correct answer would be the third option. Based on the given excerpt above from Hemingway’s A Farewell to Arms, the excerpt exemplifies how Hemingway's dialogues typically includes <span>colorful language and specific word choices to define complex ideas. Hope this is the answer that you are looking for.</span>
