Opdracht A - Kies de juiste tijd.
7. They founded/ have founded this law firm in 2008.
8. I have worked / have been working on this case since 3 o'clock.
9. She applied/ has applied for unemployment benefit.
10. I am trying/ have been trying to contact you since 10 o'clock.
11. Before I got this job, I have worked/ worked as a freelancer.
12. She has worked/ has been working as a social worker for 10 years now.