一道英语的选词填空题:Mary is the most beautiful of all ( )(选填the或her) sisters.这题是*里面的考点,麻烦回答的亲说下为什么.

问题描述:

一道英语的选词填空题:Mary is the most beautiful of all ( )(选填the或her) sisters.
这题是*里面的考点,麻烦回答的亲说下为什么.