1. I have lived in London ___ six months.

• for

• since

2. I have danced ___ I was a child.

• for

• since

3. She hasn't had a day off ___ a long time.

• for

• since

4. I've lost so much flexibility ___ I injured my leg.

• for

• since

5. They have all improved in attitude ___ the headmaster talked to them.

• for

• since

6. Wars have been happening ___ centuries, it won’t ever change.

• for

• since

7. I haven't been on holiday ___ ages.

• for

• since

8. I haven't eaten that much ___ Christmas.

• for

• since

9. I haven't been on holiday ___ last year.

• for

• since

10. She hasn't seen her jacket ___ yesterday, I think she lost it.

• for

• since