a)
2. Can you ride a horse?
3. She can play the piano.
4. He can speak four languages.
5. Can they sing this song?
6. I can drive a car.
b)
2. Can I use your phone, please?
3. Could I open the window?
4. Could I try on some jeans?
5. Can I borrow your rubber, please?
6. Can Anna come?