Usage Examples Past Simple vs. Past Continuous

• My best friend graduated from the university in June. -
• Emma called me when I was sitting on the train. -
• While I was walking to the university, I witnessed an accident. -
• We found the keys we were looking for yesterday. -
• Susie was watching a film when she heard the noise. -
• I was watching television when my mother came home. -
• Was Anna having a shower when an earthquake began? -
• When I walked into the room, they were dancing. -
• Which song were you singing when I came in? -
• Maddie came back at midnight. -
• Bob was waiting for me for two hours yesterday. -
• What was Jane wearing when you saw her at the theatre? -
• What were you doing at eight o'clock last night? -
• We were playing tennis when Alex hurt his wrist. -
• Who was Alessia talking to when you saw her? -
• What were they doing when you arrived at the party? -
• The town was changing quickly. -
• I broke my leg when I was skiing. -
• I met Elisa when I was going to work. -
• I was standing in the line when I saw Mary. -