They ... (sail) when the storm began.
They WERE SAILING when the storm began.
They ... (cook) when mum arrived home.
They WERE COOKING when mum arrived home.
A plumber ...(fix) water problems when his phone rang.
A plumber WAS FIXING water problems when his phone rang.
People ... (boat) when the dolphins appeared.
People WERE BOATING when the dolphins appeared.
A woman ... (go) to work when the rain started.
A woman WAS GOING to work when the rain started.
My friend and I ... (play) a game when my my entered the room.
My friend and I WERE PLAYING a game when my my entered the room.
I ...(read) a book when my parents came home.
I WAS READING a book when my parents came home.
Girls ...(write) in their copybooks when their teacher entered the classroom.
Girls WERE WRITING in their copybooks when their teacher entered the classroom.
Alex ...(listen) to music when I called him.
Alex WAS LISTENING to music when I called him.
We ... (go) to school when you saw us.
We WERE GOING to school when you saw us.
They ... (have) coffee when they met their friend.
They WERE HAVING coffee when they met their friend.
Charlie ... (wave) goodbye when the train started moving.
Charlie WAS WAVING goodbye when the train started moving.
We ... (sit) in the living room when the lights went out.
We WERE SITTING in the living room when the lights went out.
