Complex sentence: For over a decade Kate taught at Abbey Gate College, a secondary school just outside Chester, but when her first novel, "The Bad Mother's Handbook" was accepted, in 2003, she gave up teaching and became a full-time writer.
Split into simpler sentences: For over a decade Kate taught at Abbey Gate College, a secondary school just outside Chester. When her first novel, "The Bad Mother's Handbook" was accepted, in 2003, she left teaching and became a full-time writer.