请教这两句英语哪句是正确的?You can choose the person,with whom you want t

两者均可.
当关系代词作介词宾语,且该介词不是和从句的谓语动词构成固定短语时,介词可以提前,这样就出现"介词+关系代词".先行词指物,用"介词+which",指人则用"介词+whom",且两个关系代词均不能省略,介词的选择要遵循两个原则：
1.根据定语从句中谓语动词与先行词的搭配内容而定.2.根据先行词特殊用法而定.例如：
This flower doesn't do well in soil other than the one_____ it has been specially developed．
A．For which 　B．That 　C．Of which 　D．Where 选A.
Anyway,that evening,____I will tell you more about later,I ended up staying at Rachel's place.
　　A.when 　B.where 　C.what 　D.which 选D.

第二句正确，因为live with是词组不能拆开用的。

第二句正确，缺宾语哦！没有第一句那种说法的。