How old is she?为什么不是How old is her(宾格)?is不是介词吗,后边应该加宾语吧

How old is she?为什么不是How old is her(宾格)?is不是介词吗,后边应该加宾语吧 问她几岁了是how old is she? 为什么不是how old is her 呢? 谢谢 How Old Is She? if anyone asks her how old she is 可以吗 How old is her sister How old is he/she? how old is she girl? 1.How Old Is She? (How old is he/she? how old does she?还是how old is she? if anyone ever asks her how old she is . how old is your sister?she is 11 years old.