Jake was ________ a big sandwich.
Eating
Charles and Jake _______ working all day.
Were
Michelle was _________ for her students.
Waiting
She ______ cleaning her room at 3 am.
Was
My brother _______ ________ a shower when I went to the bathroom.
Was taking
I was __________ at the concert.
Singing
James _______ working, he ______ eating.
Wasn't / was
_____ you crying at the party last night?
Were
Mary and Lucas _______ walking to school when they saw the bus.
Were
I ______ sleeping when you arrived, I was watching a movie.
Wasn't