Complex sentence: The Ofsted reports for the year of 2005 for "Our Lady's R.C high school" years 7-11 were not good, they reported many children being late for lessons and behaviour overall was bad.
Split into simpler sentences: The Ofsted reports for the year of 2005 for "Our Lady's R.C High School" years 7-11 were not good. They reported many children being late for lessons and behaviour overall was bad.