1. My sister has been at University for six months.
2. Victoria has finished her homework.
3. Have you ever been to Paris?
4. She has worked there for 3 years
5. Jack has just gone for a walk.
6. I haven't read the book yet.
7. Jack hasn't bought a new car yet.
8. Mother has already cooked dinner.
9. Hasn't she come yet?
10. Have you finished yet?