7 Fill in yet, how long, never, since, just, for or ever, as in the example.

Решение:

1. How long have you lived in Turkey?
2. Sophie has been to the opera before.
3. I've finished my homework.
4. He has been working in Hungary since 1993.
5. A: Have you paid the phone bill? B: No, I haven't paid it yet.
6. Have you worked here?
7. A: Have you cleaned your room? B: Yes, I have just cleaned it.
8. I have never been fishing before.
9. Have you ever been on a canoe trip?