What I do like to do on mine is find as many synonyms for smaller words to make them bigger. Make some sentences longer than others and make the paragraphs sound more like myself. When I do those steps i get better grades so I recommend you try them.
Let me know if this helps :)
Answer:
They indicate that Passini feels passionately about his beliefs.
Explanation:
Passini has seen and been disillusioned by war and feels it will never end and serves no purpose, while Henry (the protagonist) still had some naive ideas about war and heroics before this incident. (Passini gets blown up and Henry severely wounded right after this convo.)
How will we know if we didn't read the passages?
To hide the notes.
He was hiding the notes because they're not allowed during the test.