Answer:
1. Wonder why Romeo has suddenly cheered up.
2. Benvolio
Step-by-step explanation:
1. I think it's 'wonder why Romeo has suddenly cheered up' because before, Romeo was kind of downcast and sad because I think Rosaline said that she didn't love him anymore or something and he has a dramatic speech.
2. Benvolio, because Tybalt got him riled up and they started to fight,