Leçon 1: paroles les bonnes manières b. qu est-ce qu on dit? if you were in a french-speaking

Hi,

 Paroles :les bonnes manières

b. Qu'est-ce qu'on dit?
If you were in a french-speaking environment, what would you say in these situations?

 - In class, you drop your book on your neighbor's foot.
"Pardon" or "Excuse-moi".

- Your professor just said something; you're not sure what, but it sounded important.
"Pourriez-vous répéter s'il vous plaît?"

- You pass a friend on the way to class.
"Salut ! Ca va?"
 
- You pass a male professor on the way to class.
"Bonjour Monsieur".

- You want to introduce yourself. (your name)
"Bonjour, je m'appelle (name)"

- Your friends are leaving your apartment at the end of the evening.
"Bonsoir"

- A fellow student has just thanked you for picking up a book.
"De rien".

19479 is the answer ^^