改错My legs is shorter than my father's.

改错My legs is shorter than my father's.
改错My legs is shorter than my father's.

改错My legs is shorter than my father's.
is 改are
legs 是复数 谓语动词应该用复数形式
希望对你有所帮助,有不会的可以再问,

My legs are shorter than my father's.

My legs are shorter than my father's legs