She worked for several years as a model before becoming an actress.

Young scientists spend very few years working with their own hands before becoming administrators.

He worked as a teacher before becoming involved in politics.

She worked as an editor for four years before becoming a writer.

She worked as a social worker for a brief period before becoming involved in politics.

He worked as a clerk before becoming a music teacher.

He worked in the film industry before becoming an author.

He worked at a bank for several years before becoming president of the family business.

He worked in television and journalism before becoming an author.

He worked several years as a police officer before becoming an actor.