№4.
1. Have you ate Japanese food?
2. Have your parents climbed a mountain?
3. Have you tried parachuting?
4. Has your team won the League?
5. Have you visited the USA?
6. Have you swam in the Mediterranean?
№6.
1. Have you ever tried rock climbing?
2. I have never had a serious accident.
3. Has your mum ever visited Britain?
4. We have never run a marathon.
5. Have you ever felt really frightened?