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