1. I have never heard such a thing.
2. Have you ever read this news?
3. I have often travelled by car to the countryside.
4.He has already finished his classes.
5. Tom has just spoken on the phone with Mary.
6. They haven't written the exercise yet.
7. I've had my own car for four years.
8. She has been ill since yesterday.
9. I haven't had any Math problems up to now.
10. So far, he hasn't complained about his wage.