5. 1. We were having dinner at 9 o'clock
2. I was not studying at midnight.
3.Were you sleeping?
4. My parents were not working at that time.
5. My brother was watching a crime programme.
6. Was Emma waiting for the bus?
6. 1. Arrived, was doing.
2. Were having, phoned
3.was not sleeping, went off
4.what were you doing, saw
5.did not see, was living
6.was it raining, left