Помогите пожалуйста даю 45 баллов!!!

1.I have studied French.
2. She has eaten octopus.
3. They have been to Scotland.
4. We have read that book.
5. He has lived here for three years.
6. You have know David for ten years.
7. We have been here for two weeks.
8. I have lost my keys.
9. He has drunk too much coffee.
10. The have missed the train.