Complex sentence: She is a trained gymnast and has high level grades in all elements of dance and Longley received her first professional role at the age of 13, when she joined the cast of'Chitty Bang Bang' at the London Palladium.
Split into simpler sentences: She is a trained gymnast and has high level grades in all elements of dance. Her first professional role came at the age of 13, when she joined the cast of'Chitty Bang Bang' at the London Palladium.