主谓一致,主语是单数第三人称he ,谓语动词当然要用单数has ,跟not only ...but also 没关系,因为not only ...but also 连接两个主语时,才采用就近原则.如：Not only the students but also the teacher has seen the movie .这句话还可以说：Not only the teacher but also the students have seen the movie .