I was reading a book the whole morning.
Was I reading a book the whole morning?
She was riding a bke from 3 till 4 o"clock.
Was she riding a bke from 3 till 4 o"clock?
They were doing exercises.
Were they doing exercises?
You were drinking tea at 4 o"clock yesterday.
Were you drinking tea at 4 o"clock yesterday?
It was raining the whole day yesterday.
Was it raining the whole day yesterday?