Ответ:
Упражнение 5. Раскройте скобки,употребляя глаголы Past Simple или Past Continuous.
1. My brother didn't play tennis yesterday.
2. He played tennis the day before yesterday.
3. My sister wasn't playing the piano at 4 o'clock yesterday.
4. She played the piano the whole evening.
5. When I came into the kitchen, mother was cooking.
6. She cooked the whole day yesterday.
7. We washed the floor in our flat yesterday.
8. We were washing the floor in our flat from 3 till 4 yesterday.
9. Did you do your homework yesterday?
10. Were you doing your homework from 8 till 10 yesterday?
11. Why was she sleeping at 7 o'clock yesterday?