Complex sentence: Her critics complained of the long hours and heavy responsibilities she expected from probationers; the hours were demanding: 7 a.m.-9 p.m., with half an hour for lunch and the pay was £10 a year.
Split into simpler sentences: Her critics complained of the long hours and heavy responsibilities she expected from probationers. The hours were demanding: 7 a.m.-9 p.m., with half an hour for lunch and the pay was £10 a year.