Complex sentence: He graduated in Commerce (BCom) at University of Melbourne, in 1974; and he completed a Diploma of Education (DipEd) at the State College of Victoria at Rusden, in 1975.
Split into simpler sentences: He graduated in Commerce (BCom) at University of Melbourne, in 1974. He completed a Diploma of Education (DipEd) at the State College of Victoria at Rusden, in 1975.