She had a shower when her mobile phone rang.
She was having a shower when her mobile phone rang.
This time last year, we weren't studying French.
This time last year, we weren't studying French.
Three days ago, I spend a very interesting evening at my friend's house.
Three days ago, I spent a very interesting evening at my friend's house.
What was you doing at 7 o'clock in the evening?
What were you doing at 7 o'clock in the evening?
Tim didn't went to Italy last week.
Tim didn't go to Italy last week.
Last night Martin and Sue was studying from 2 to 6.
Last night Martin and Sue were studying from 2 to 6.
Jane bought a very nice dress yesterday.
Jane bought a very nice dress yesterday.
When he was breaking this vase yesterday he was watching football.
When he broke this vase yesterday he was watching football.
Sally was doing her homework while I listened to my favorite radio station.
Sally was doing her homework while I was listening to my favorite radio station.
Did you cook dinner when my sister call you?
Were you cooking dinner when my sister called you?
Mary was painted her room when her father came home
Mary was painting her room when her father came home
Andrew wasn't eating pizza yesterday.
Andrew didn't eat pizza yesterday.
Did you knew the answer?
Did you know the answer?
Were you played football when your cat fell out of the window?
Were you playing football when your cat fell out of the window?
I was making this project for three days.
I was making this project for three days.