现完时have been to there为什么be后面可以+地点?

现完时have been to there为什么be后面可以+地点? Where have you been there days?这里不是应用have been 为什么there前不加to i have been there 和 i have been to china为什么一个有to一个没有? there be 和 there has/have been this may have been close to the truth这个have been后面为什么加close原 have been there 还是 have been to there have been to和 have gone to后面可以加时间吗 为什么 are more likely to have been,可以这样用?have been 可以去掉吗? --have been told to be there on time.--,you____.They have ch 1.I have ever been there 我想表示的是我曾经去过那里 been 后面要不要加to He has been there for six months.has been后面为什么不加to?还有为什么要加fo have ever 为什么后面加been