1. They have worked in Japan.
2. William has grown a lot since the last time I saw him.
3. My parents have been together for twenty years.
4. They have borrowed a lot of money from their friends.
5. She has taught English in many different schools.
6. You have offended everybody in the office.
7. I have heard that noise in my car several times.
8. He has cheated on every one of his tests