how old is he?复数是什么

how old is he?复数是什么 (How old is he/she? How old is he/she? how old is he?he is nine.中文how old is he?he is nine.中文翻译. how old is she/he?怎么回答? How'old-is·-He/she? how old is he答句 How old is he?改为同义句 写同义句:How old is he? How old is he的同义句 How old is he 改为同义句 how old is he?的同义句 How is he?改为复数句无 How old is he how old在句中做什么成分啊?how old相当于形容词么？ He is an old policeman.(改为复数句) How old is she?的中文是什么 how old she is是什么结构 How old is Jack?I think_____(he is)12.填空