Usage Examples Past Simple vs. Past Continuous

• Emma called me when I was sitting on the train. -
• Who was Alessia talking to when you saw her? -
• The town was changing quickly. -
• My mother bought a new bag yesterday. -
• What were they doing when you arrived at the party? -
• What were you doing at eight o'clock last night? -
• Which song were you singing when I came in? -
• While I was walking to the university, I witnessed an accident. -
• You weren't dancing at noon yesterday. -
• Were they smiling when they saw you? -
• What was Jane wearing when you saw her at the theatre? -
• Was your grandmother working when she met your grandfather? -
• I met Elisa when I was going to work. -
• I was standing in the line when I saw Mary. -
• The bird was singing in the garden when the cat attacked it. -
• Why were you crying when I met you? -
• My wife arrived when I was having a bath. -
• I was studying at the library all day yesterday. -
• I broke my leg when I was skiing. -
• Someone took a picture of Tom while he was sitting on a bench. -