Which place have you been (to)?where have you been?第一句话要加to吗?为什么?这两句话有什么区别?

问题描述:

Which place have you been (to)?where have you been?
第一句话要加to吗?为什么?
这两句话有什么区别?

意思一样,where不需要介词,which place需要介词to,要加to

要.
which place在句中作宾语.where在句中作状语.因此第一个句子需要加to.