1. Father was watching TV at ten o`clock yesterday.
2. I went to bed at nine o`clock yesterday.
3. He finished his homework at seven o`clock yesterday.
4. She was playing the piano at five o`clock yesetrday.
5. We began the exercise at 2 o’clock.
6. My mom was washing the floor at four o`clock.
7. I met my friend at three o`clock the day before yesterday.
8. When I met John, he was going to the railway station.
9. When I was going to the museum, I saw a big crowd of people in the street.
10. They were playing in the yard in the evening yesterday.
11. They played in the yard the whole evening yesterday.
12. I was cleaning my teeth at eight o`clock in the morning yesterday.