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?