Tom as well as his calssmates has been on a package tour to beijing already这句话对吗,还是要用has gone
问题描述：
Tom as well as his calssmates has been on a package tour to beijing already
这句话对吗,还是要用has gone
答
对.
as well as 连接两个主语,谓语动词用就远原则
也就是根据 Tom 来确定.
Tom 是第三人称单数,所以用 has been .