Задание 1.
1. She cooked lunch yesterday.
2. She was cooking at three o'clock yesterday.
3. She was cooking from two till four yesterday.
4. I wasn't reading the book at five o'clock.
5. I wasn't reading when you came in.
6. What was he doing when I came?
7. What was he doing the whole day yesterday?
Задание 2.
1. When my father came home, I was having dinner.
2. When Alice returned, I was listening to the radio.
3. When mother entered his room, he was drawing a picture.
4. When my sister came in, I was doing my lessons.
5. When her aunt was airing the room, she caught cold.
6. When I met her, she was going to the office.
7. He was washing his face when somebody knocked at the door.