1. I have never been to USA. I wanted to go there last summer bur I couldn't.
2. He has lived in this street all his life.
3. His father came back from London last Sunday.
4. Yan wrote a letter to Nick two days ago.
5. He sent his letter yesterday.
6. They have just bought some postcards.
7. Maria got some bad news last week. She has been sad since she got bad news.
8. I started school when i was five years old. I have been at school since I was five years old.
9. I have changed my job three times this year.
10. I changed my job three times last year.
11. Rained
12. Broke; Has been; Broke.
13. Have already finished it; I finished my work two hours ago.
