CAN, COULD, MAY (requests)

(from www.better-english.com)

Match the items on the right to the items on the left.

Can I get you a cup of coffee?
Could you lend me your newspaper?
May I come in?
Could I use your phone?
Do you think I could borrow a pen?
Can I have some paper?
Can you change a pound?
May I see your driving license, please?
Can I ask you a question?
Can I help you, madam?