Complex sentence: Greg Clark was born in Middlesbrough and attended the local South Bank Comprehensive School, before reading Economics at Magdalene College, Cambridge and then the London School of Economics, where he was awarded his PhD.
Split into simpler sentences: Greg Clark was born in Middlesbrough and attended the local South Bank Comprehensive School, before reading Economics at Magdalene College, Cambridge. He then studied at the London School of Economics, where he was awarded his PhD.