When I saw him, he was working in the garden.
Ed and Sam were not mending the car at that time.
What time did they have dinner yesterday?
While Mum was cooking dinner, I was cleaning the rooms.
The boys were playing football at 3.
I looked at her and understood that she was sleeping.
What was Terry doing when you met him?
At that time Claire was reading.
When we finished the work, we left the office.
Yesterday Philip was very busy. He was getting ready for his exam.