3 was playing, 10 were you going, 5 was looking, 8 was running, 7 was reading, 9 was staying, 4 was calling, 6 was getting, 2 were taking, 1 was studying.
The strong wind (was blowing when we (were) in the open space.
He (was watching) the children run and play.
They (were leaving) when she ( came) in.
I (was travelling) abroad when I ( got) his e-maiL
She (was driing when she (noticed) me in the street.
It (was snowing) all the evening yesterday.
When I (entered) the classroom, everybody (was writing)
something very attentively.
My friend (was walking) at 1 o'clock yesterday.
We (were having) breakfast when the postman ( arrived).
Mary (was getting) ready for the exam while I (was taking) notes.