1. I have worked at this school _______ six years.

2. John has been a lawyer _______ he was 24.

3. Olivia and Lisa have lived here _______ 1987.

4. I have waited at the station _______ a couple of hours.

5. She has liked rock music _______ she was little.

6. We have been on the boat _______ two hours.

7. The flight has been delayed _______ four hours.

8. We have known each other _______ we were in school.

9. John has played the guitar _______ he was nine.

10. Jane is running a marathon. She’s been running _______ hours.