Usage Examples Past Simple vs. Past Continuous

• I was standing in the line when I saw Mary. -
• When I woke up, it was snowing. -
• Was Anna having a shower when an earthquake began? -
• Why were you crying when I met you? -
• Who did you see at the train station? -
• Emma called me when I was sitting on the train. -
• My mother was cooking for five hours on Sunday. -
• Were you sleeping when everything happened? -
• Lisa was studying when Joe called her. -
• My best friend graduated from the university in June. -
• What were you doing at eight o'clock last night? -
• Which song were you singing when I came in? -
• I wanted to call my mum but I called you instead. -
• Where was Rob going when he lost his phone? -
• Anna did not mean to hurt you. -
• I met Elisa when I was going to work. -
• While I was walking to the university, I witnessed an accident. -
• Were they smiling when they saw you? -
• The children were playing in the park when it started to rain. -
• Were they studying at this time yesterday? -