1. What do you think has happened?
2. What do you know about…？
3. How do you like…？ / What do you think of…？ / What db you feel…？
4. May I interrupt you for a moment?
5. Excuse me / Forgive me for… / I apologize for…
6. I'm （very / so / terribly） sorry. It's all my fault.
7. That's all right. / That's OK. / No problem.
8. I wish you all the best.
9. I'm sorry. I didn't mean to…
10. Let's drink （a toast） to…！