Usage Examples Past Simple vs. Past Continuous

• My best friend graduated from the university in June. -
• Which song were you singing when I came in? -
• What were you doing at eight o'clock last night? -
• What were they doing when you arrived at the party? -
• Who did you see at the train station? -
• Emma called me when I was sitting on the train. -
• Lisa was studying when Joe called her. -
• We found the keys we were looking for yesterday. -
• Just as Ted was finishing his homework, he remembered another exercise he had to do. -
• I was reading when the doorbell rang. -
• While I was walking to the university, I witnessed an accident. -
• I was standing in the line when I saw Mary. -
• Someone took a picture of Tom while he was sitting on a bench. -
• Were you sleeping when everything happened? -
• Susie was watching a film when she heard the noise. -
• I broke my leg when I was skiing. -
• Why was Lucy smoking at the party? -
• The bird was singing in the garden when the cat attacked it. -
• Paula was running when the storm started. -
• Was your grandmother working when she met your grandfather? -