While I _________ (walk) to school, I saw an old friend.
had walked
walked
was walking
By the time we arrived, the movie _________ (start).
started
was starting
had started
She _________ (already/eat) dinner before we invited her.
was already eating
already ate
had already eaten
He fell asleep while he _________ (watch) TV.
had watched
was watching
watched
I _________ (finish) my homework before my mom got home.
finished
had finished
was finishing
When he entered the room, everyone _________ (talk).
was talking
had talked
talked
I _________ (read) when my phone rang.
read
was reading
had read
They _________ (leave) before we arrived.
left
were leaving
had left
We _________ (arrive) at the airport two hours ago.
had arrived
arrived
were arriving
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
We _________ (have) dinner when the lights went out.
were having
had had
had
While they _________ (play) football, it started to rain.
played
were playing
had played
By the time she called, I _________ (already/go) to bed.
was already going
already went
had already gone
