1.He (has) went to Guangzhou.(has 可以省略)
2.He has been to Guangzhou.
have been 与have gone 的区别:
have been 是指去过某地,但是已经回来.
例如:I have been to Beijing.我去过北京(现在人不在北京)
have gone 是指已经去了某地,但是没有回来.
He has gone to Beijing.他已经去了北京(人在北京)