The Andersons ... (not watch) TV yesterday morning.
weren't watching
While we ... (walk) in the park, Tom ... (do) his homework
were walking/was doing
They ... (wash) the dishes at 5:30 pm yesterday.
were washing
We ... (wait) for the bus when it started raining.
were waiting
Alan ... (not listen) to music at 3 o'clock yesterday afternoon.
wasn't listening
Emily ... (not sing) all morning.
wasn't singing
We ... (sit an exam) when a fire alarm went off.
were sitting an exam
She ... (cook) dinner at 5 o'clock yesterday afternoon.
was cooking
I ... (go on a school trip) at 9am yesterday morning.
was going on a school trip
Brian ... (not lay) the table when I walked in.
wasn't laying