Odpowiedź :
While I was texting (text), the school bus arrived(arrive).
Cindy broke (break) her leg while she was snowboarding (snowboard).
He was listening (listen) to the radio while he was preparing (prepare) breakfast.
My father was driving (drive) at 70 km/h when a policeman stopped (stop) him.
The girl didn't notice (not notice=zauważyć) that the boy was watching (watch) her.
My dad fell off (fall off) the ladder while he was painting (paint) the roof.
While we were waiting (wait), we were doing (do) crossword puzzles.
Nick became (become) sick while he was travelling (travel) in Texas.
What were you doing (do) when you heard (hear) about the exam?
When I saw (see) Jim at the disco, he wasn't talking (not talk) to the DJ.