Past Simple:
Ann walked with her friends at 6 o'clock yesterday.
Fred was in cafe in this time two days ago.
Inessa played tennis, when Mary was drinking a tea.
Past Perfect:
When police came, robbers had already left.
Violet had cooked dinner by 7 o'clock.
Ben had come home before rain started.
Past Simple:
Ann walked with her friends at 6 o'clock yesterday.
Fred was in cafe in this time two days ago.
Inessa played tennis, when Mary was drinking a tea.
Past Perfect:
When police came, robbers had already left.
Violet had cooked dinner by 7 o'clock.
Ben had come home before rain started.