Read the examples and complete the rules

• I was reading at 7 o'clock yesterday.
• My parents were watching TV while I was doing homework.
• The sun was shining, and the birds were singing on that sunny day.

Past Continuous is used:

• a particular time

• the same time

• the background

• for actions/states in progress at [ ] in the past;

• for two or more actions in progress happening at [ ]in the past;

• to describe [ ] in a story.