Past continuous - minulý čas průběhový
2. Use and practice - použití
When she CAME home, I WAS READING a book.
We WERE WALKING down the street when it BEGAN to rain.
I BROKE my leg while I WAS PLAYING football.
What WERE you DOING last night at 10? I WAS WATCHING TV.
Practice
https://learnenglish.britishcouncil.org/grammar/english-grammar-reference/past-continuous
https://www.perfect-english-grammar.com/past-continuous-exercise-1.html?utm_content=cmp-true