While I _________ (walk) to school, I saw an old friend.
was walking
walked
had walked
By the time we arrived, the movie _________ (start).
had started
was starting
started
She _________ (already/eat) dinner before we invited her.
already ate
had already eaten
was already eating
He fell asleep while he _________ (watch) TV.
was watching
watched
had watched
They _________ (never/be) to Paris before their honeymoon.
never were
had never been
were never
I _________ (finish) my homework before my mom got home.
had finished
finished
was finishing
When he entered the room, everyone _________ (talk).
was talking
had talked
talked
We were tired because we _________ (walk) all day.
had walked
walked
were walking
I _________ (read) when my phone rang.
had read
read
was reading
They _________ (leave) before we arrived.
left
were leaving
had left
We _________ (arrive) at the airport two hours ago.
arrived
were arriving
had arrived
She _________ (finish) her homework and then watched TV.
finished
had finished
was finishing
I _________ (lose) my keys yesterday and couldn't get into my house.
was losing
lost
had lost
They _________ (buy) a new car last weekend.
bought
were buying
had bought
The teacher _________ (explain) the lesson and then gave us some exercises.
had explained
explained
was explaining
She _________ (wait) for an hour before the bus came.
had waited
waited
was waiting
