1. I've been studying art since 2009.

2. How long have you been wearing your glasses?

3. Have you been swimming all afternoon?

4. It's been raining for two hours now.

5. We haven't been watching the match.

6. My parents have been studying English for five years.

7. How long has Joanna worked in that cafe?

8. Has Amy been surfing the Internet all day?

9. My sister has been working as a photographer for three years.

10. Have Hannah and Eve been revising for their exam for all evening?