请问“Most of the questions had nothing to do with his lessons”

楼上不对
我记得我上初中时学过这篇课文：好像是爱迪生的故事（我记不清了）,这句话是老师批评他：“大多数（他所提出的）问题和课上所讲无关.”
A has nothing to do with B----A和B无关