Complex sentence: Since then she has studied in London at The Drama Studio and East 15 Acting School and supplemented her training with Peter Ellis in Acting on Screen, stage fighting, and took singing lessons in Jazz and forties popular cabaret standards.
Split into simpler sentences: Since then she has studied in London at The Drama Studio and East 15 Acting School and supplemented her training with Peter Ellis in Acting on Screen. In addition she took a certificate in stage fighting took singing lessons in Jazz and forties popular cabaret standards.