1. A: Can I ask you a question?
B: Of course you can, Marta.
2. A: Look at Anette.
She can dance so well!
B: yes, but she can't sing at all.
3. A: Can I use your camera, Dad?
B: Sorry, Andy but you can't.
4. A: May I borrow your pen, Mark?
B: Of course you may. Here you are.