Past Continuous vs Past Simple

Front

Hello Anna, what _______ (you / do) when I called you last night?

Back

were you doing

Front

While they were watching TV, their kids ________(sleep)

Back

were sleeping

Front

I was listening to the radio when you ________(call) me.

Back

called

Front

When he opened the window, it __________ (snow).

Back

was snowing

Front

She met them at the station while she _________ (wait) for her train.

Back

was waiting

Front

She missed the bus because she __________ (argue) with one of her friends.

Back

was arguing

Front

While she was talking to her boss, her mobile phone _________ (ring).

Back

rang

Front

I couldn’t answer your call because I __________(drive)

Back

was driving

Front

We were walking in the mountains when we_________ (see) a strange animal.

Back

saw

Front

He had an accident while he ___________(play) rugby with his friends.

Back

was playing