They were playing(play) football yesterday from 13:00 to 15:00.
They played(play) football yesterday from 13:00 to 15:00.
At 8.30am today I was driving(drive) to work.
At 8.30am today I drove(drive) to work.
We were sleeping(sleep) at 11pm. when he came back home.
We slept(sleep) at 11pm. when he came back home.
I was studying(study) English at that time.
I studied(study) English at that time.
Should I use past or past continuous if I mention exact time period?