Помогите пожалуйста задавали давно и объясняли тоже,а я все забыл

1. has lived
2. lived
3. has stopped
4. stopped
5. has bought
6. bought
7. has blown
8. has changed
9. changed
10. traveled

2. We havent got breakfast yet.
3. They are drinking tea in the canteen.
4. I have already done my homework.
5. He is doing his homework.
6. We have had three lessons today.
7. They have just had a meeting.
8. She has not read this book yet.
10. Who has written this.