Past Continous
What ____ when I called you yesterday?
Were you doing
Had finished
She ___ for two hours before we finally met her
Had been waiting
She ___ in Paris before moving to London
Had lived
While he ____, someone knocked on the door
Was sleeping
I didn’t see you because you __ home when I arrived
Had left
I ___ all my homework before dinner
Had done
They ___ TV when I called them
Were watching