Раскройте скобки. (Past Simple or Present Perfect)1. Tom (to be) already

Раскройте скобки. (Past Simple or Present Perfect)
1. Tom (to be) already to the library. He is reading a very interesting book.
2. My father knows so much because he (to tarvel) a lot.
3. I (to see) Pete today.
4. She (to see) Pete today.
5. Alex (to meet) his friend two hours ago.
6. I just (to meet) our teacher.
7. The children already (to decide) what to do with the books.
8. Helen speaks French so well because she (to live) in France.