6)
2. My mother has never flown in a plane.
3. I have already had lunch.
4. Have you read this book yet/
Yes, I have just finished it.
7)
2. Have you seen the new James Bond film yet?
Yes, I saw it last weekend.
3. Have your parents bought a new car?
Yes, they bought a Volkswagen on Saturday.
4. Has Peter lost his new phone?
Yes, he lost it at the party last night.