Past Simple vs Past Continuous

We ____________ (play) football with Tom, when you called me.

When the teacher came in, they ____________ (study) English.

The baby __________ (sleep) when the telephone ______ (rang).

As I ___________(walk) in the streets of Korea, I _______ (meet) an old friend of mine.

I _______ (lose) my car keys.

I was looking for my purse when I _______ (stop)

My uncle ________ (take) me to the airport yesterday.

She _________ (dance) when she hurt her back.

It _________ (rain) heavily when I got up.

I _________ (saw) the thief while he ________ (get) into my neighbor's house.