his new shoes are too short,but his sister's is too long.（改错题...我在写作业..帮帮忙..）
问题描述：
his new shoes are too short,but his sister's is too long.（改错题...我在写作业..帮帮忙..）
答
sister's 后面的 is 改成 are 因为主语也是一双鞋子