Помогите пожалуйста. Задание 5.8. Даю 50 баллов, но внушительно прошу ответить

1. When I arrived the lecture had already started.
2. Peter sat in s dark room with a book. I told him that he was reading in very bad light.
3 Mother мейд a cake when the light went out.
4. When I arrived Jenny was leaving so we had time only for a few words.
5. John was having a bath when the telephone rang.He got out of the bath and went to answer it.
6. When he came to the airport, the plane had already landed.
7. He suddenly realized that he was traveling in the wrong direction.
8. You looked very busy when I saw you last night. What were you doing?
9. I called Paul at 7.00 but it wasn't necessary because he had already got up.
10. When I saw him he was crossing the street.
11. While he was watering the flowers it began to rain.
12. Ann said that she was on holiday. I said that I hoped that she would enjoy herself.
13. When I was looking through books I noticed that you had a copy of Jack London.
14. She said that she didn't like her present flat and tried to find another.
15 When Ann had finished her homework, she turned on TV.

1) When I arrived the lecture had already started.
2) was sitting/ was reading
3) Was making/ went
4) was leaving
5)was having/got/went
6) came/ the plane had already landed
7) realized/ was traveling
8)were you doing
9) called/ he had already got up
10) saw / he was crossing
11) was watering/ it begun
12) was /hoped/ enjoyed
13) was looking/ noticed/ had
14) hadnt liked/ tried
15) finished/ turned