Complex sentence: He studied Theology at St Marys College at the University of St Andrews from 1980 to 1981 he was a school teacher in Economics at Charterhouse, then Wrekin College from 1982 to 1987.
Split into simpler sentences: He studied Theology at St Marys College at the University of St Andrews. From 1980 to 1981 he was a school teacher in Economics at Charterhouse, then Wrekin College from 1982 to 1987.