Hey so the answer is the night before the trip
Answer: Fabio's attitude changed because he'd be in the parade.
Explanation: Fabio is excited to be able to participate in the parade. The focus of the question isn't on why he'd be in the parade or how? But on what makes his attitude change. Every other factor mentioned corroborates that he'd be participating in the parade.
Answer:
D:Champollion gathered more knowledge.
Explanation:
First is 2
Second is 2
Third is 1
Fourth is 2