Present Perfect Simple Vs Present Perfect Continuous

4. Why is your hair wet? It _______________ for hours and I didn't have any umbrella!

5. Those two girls of the front row _______________ to each other since the film started.

6. Which sentence is correct:

1. I have worked as an accountant for 8 years.

2. I have been working as an accountant since 2013.

7. I haven't seen you _____ ages.

8. I haven't been on vacation _______ last July.

9. You have been running in circles ____ 30 minutes!

10. He hasn't been going to school ____ last year.

11. Which sentence is correct:

1. I have known Stella all my life.

2. I have been knowing Stella all my life.

12. Which sentence is correct:

1. I have been loving you all my life

2. I have loved you all my life

13. He/to write/letters/for/an hour.

14. He/to write/500 letters

15. Amy/ to write/ emails/ all morning

16. Amy/ to write/ 17 emails/ this morning