6 After John had parked/had been parking the car, he went into the house. 7 This time yesterday, we lay/were lying on the beach sunbathing. 8 l didn't go out last night because I wasn't finishing/hadn't finished my homework. 9 Jack had been working/was working at the company for ten years before he left. 10 He was driving/had been driving for an hour when the car broke down. Сделать упражнение

Here are the correct answers for the sentences you've provided:

6. After John had parked the car, he went into the house.
7. This time yesterday, we were lying on the beach sunbathing.
8. I didn't go out last night because I hadn't finished my homework.
9. Jack had been working at the company for ten years before he left.
10. He had been driving for an hour when the car broke down.

If you have any questions about why these choices are correct, feel free to ask!