A: Could you pass me some sugar, please?
A: Could you tell him I called?
A: Can I borrow your laptop?
A: Can you help me carry these boxes, Max?
A: Could I ask you a favour?
A: Can I go to the cinema, mum?
B: Here you are.
A: Sure! How can I be of help?
B: Yeah! I'm coming!
B: You can go, but you have to do your homework first.
B: Sure, I'll tell him.
B: No, you can't. I'm going to use it later.