1. You want to go to the toilet
May I use your book?
May I go to the restroom?
May I stand up?
Can I use your phone?
2. You want to eat a sandwich
May I eat an apple?
Can I open the book?
May I eat my lunch?
Can I sit down?
3. You want to borrow something to write.
May I use your notebook?
Can I borrow some money?
May I go outside?
May I borrow you pen?
4. You want to call your friend
May I use my phone?
Can I go outside?
May I talk to you?
Can I stay here?