1. I (read) was reading books at this time last Sunday morning.
2. She (watch) was watching TV at this time yesterday.
3. They (play) were playing soccer at this time last sunday.
4. We (study) were studying Math at this time yesterday.
5. He (do) was doing his homework at 8o'clock last night.
6. These students (have) were having party at 10 o'clok last monday.
7. My father (watch) was watching TV and (sing) was singing at 9 o'clock last night.