/ BOY / WHEN / TWELVE / DIE / FATHER / DANGEROUS DISEASE /.A. WHEN...

73. / boy / when / twelve / die / father / dangerous disease /.a. When the boy was twelve his father died of a dangerous disease.b. When the boy was twelve his father died for a dangerous disease.c. When the boy was twelve his father died because a dangerous disease.d. When the boy was twelve his father died with a dangerous disease.