Usage Examples Past Simple vs. Past Continuous

• My best friend graduated from the university in June. -
• Was your grandmother working when she met your grandfather? -
• I was studying at the library all day yesterday. -
• What were you doing at eight o'clock last night? -
• Someone took a picture of Tom while he was sitting on a bench. -
• My wife arrived when I was having a bath. -
• Anna was sleeping when the burglars broke into her house. -
• The bird was singing in the garden when the cat attacked it. -
• Why was Lucy smoking at the party? -
• Lisa was studying when Joe called her. -
• When I walked into the room, they were dancing. -
• Emma called me when I was sitting on the train. -
• You weren't dancing at noon yesterday. -
• Was Anna having a shower when an earthquake began? -
• What were they doing when you arrived at the party? -
• Just as Ted was finishing his homework, he remembered another exercise he had to do. -
• We found the keys we were looking for yesterday. -
• Were they studying at this time yesterday? -
• I was reading when the doorbell rang. -
• I met Elisa when I was going to work. -