Would Mercutio's actions or attitude have been different if he had known of Romeo and Juliet's marriage? Might he have avoided the
duel that killed him?

the answer is emerged from.

orpheus descended to hades, the world of the death to rescue eurydice. no mortal had ever done this before him, he survived because he was protected by the gods. the word "underworld" gives us a clue, he emerged from it like a whale emerges form sea for exemple.

its b add a sentence to the middle that reflects on the writer’s experiences.

i just took the test