Usage Examples Past Simple vs. Past Continuous

• I was standing in the line when I saw Mary. -
• We found the keys we were looking for yesterday. -
• What were you doing at eight o'clock last night? -
• Paula was running when the storm started. -
• Why were you crying when I met you? -
• Someone took a picture of Tom while he was sitting on a bench. -
• I went to Tokyo last month. -
• While I was walking to the university, I witnessed an accident. -
• Lisa was studying when Joe called her. -
• My best friend graduated from the university in June. -
• My mother was cooking for five hours on Sunday. -
• The town was changing quickly. -
• I was watching television when my mother came home. -
• Were they studying at this time yesterday? -
• Bob was waiting for me for two hours yesterday. -
• I was reading when the doorbell rang. -
• Where was Rob going when he lost his phone? -
• Anna did not mean to hurt you. -
• My mother bought a new bag yesterday. -
• I broke my leg when I was skiing. -