was/were
Mary (was/were) baking a cake.
Mary was baking a cake.
She _ (read) a book when the power went out.
She was reading a book when the power went out.
All night/she/for/studying/the/was/exam
She was studying all night for the exam.
Bob (was/were) begging Mary to let him try a piece of cake.
Bob was begging Mary to let him try a piece of cake.
They_(play)cards while it_(rain)outside.
They were playing cards while it was raining outside.
They/a movie/were/last night/at the cinema/watching
They were watching a movie at the cinema last night.
Students (was/were) lying about their homework.
Students were lying about their homework.
I _ (not, sleep) when the earthquake _(occur).
I wasn’t sleeping when the earthquake occurred.
at 5 PM/playing/football/they/yesterday/were/in the park
They were playing football in the park at 5 PM yesterday.