Usage Examples Past Simple vs. Past Continuous

• While I was walking to the university, I witnessed an accident. -
• Who did you see at the train station? -
• My best friend graduated from the university in June. -
• We were playing tennis when Alex hurt his wrist. -
• I was standing in the line when I saw Mary. -
• Were you sleeping when everything happened? -
• I wanted to call my mum but I called you instead. -
• When I walked into the room, they were dancing. -
• I was studying at the library all day yesterday. -
• I broke my leg when I was skiing. -
• Why were you crying when I met you? -
• What were you doing at eight o'clock last night? -
• Was your grandmother working when she met your grandfather? -
• Which song were you singing when I came in? -
• Susie was watching a film when she heard the noise. -
• I was watching television when my mother came home. -
• Were they smiling when they saw you? -
• Where was your cousin born? -
• The children were playing in the park when it started to rain. -
• Where was Rob going when he lost his phone? -