Past Continuous and Past Simple
I __________ (type) my report, when the electricity ____ (go) off.
I was typing my report when the electricity went off.
They _____ (cook) dinner when I arrived.
They weren't cooking dinner when I arrived.
He _____ (lose) his wallet while he _________ (jog) in the park.
He lost his wallet while he was jogging in the park.
We ________ (carry) an umbrella when it started to rain.
We weren't carrying an umbrella when it started to rain.
Joseph __________ (study) yesterday when his cat _____ (die).
Joseph was studying yesterday when his cat died.
Greg ________ (study) when we went to his house.
Greg wasn't studying when we went to his house.
While she _________ (cook), the telephone ______ (ring).
While she was cooking, the telephone rang.
It ______ (rain) while we were playing tennis earlier.
It wasn't raining while we were playing tennis earlier.