which do (you) prefer,apen or a pencil?这句里which do (you) prefer,apen or a pencil?这句里为什么不能用her而用you

问题描述:

which do (you) prefer,apen or a pencil?这句里
which do (you) prefer,apen or a pencil?这句里为什么不能用her而用you

her是物主代词,不能用在do的后面,可以用she但美国人比较喜欢当面的问

因为这里需要主语