问题描述： His fatheris is forty-two years old.用how old 就划线部分提问 1个回答 分类：英语 2014-11-14 问题解答： 我来补答 how old is John's father?人名可以换掉,换成how old is his father?也行,但是我觉得前者比较合适 展开全文阅读
