1. May I/Can I have a glass of water? 2. May I/Can I borrow your pen? 3. May I/Can I sit here? 4. May I/Can I use your phone for a moment? 5. May I/Can I open the window? 6. May I/Can I ask you a question? 7. May I/Can I leave early today? 8. May I/Can I have another slice of cake? 9. May I/Can I park my car here? 10. May I/Can I see the menu, please? 11. May I/Can I help you with that? 12. May ..