1. At this time yesterday we (play) were playing tennis in the schoolyard.
2. At 7:00 pm yesterday i (watch) was watching TV.
3. Yesterday while my father (watch) was watching TV, my mother (read) was reading the newspaper, my sister (do) was doing her homework and I (play) was playing chess with my friend.
4. What were you doing when I phoned you? I (have) was having a bath.
5. She (do) was doing her homework at the time yesterday.
6. Mary (water) was watering the flowers at 3:00 p.m yesterday.