he's a fifteen-year-old boy.[改为同义句 he’a boy

he's a fifteen-year-old boy.[改为同义句 he’a boy He is a sixteen-year-old boy.同义句, 英语翻译Henry is a fifteen-year-old boy .He studies in a middle He is twelve years old.改为同义句 He is a()boy . 有木有He is a fifteen-year-old American boy这样说 he is a 13-year-old boy fifteen-year-olds和a fifteen-year-old boy he is a boy of twelvve this year改为同义句 He is a 16-year-old boy He is a 16 years old boy这两句哪一句对啊、 he used to be a quiet boy 改为同义句 he is a 6-year-old boy.可以说he is a 6 years old boy吗 Mike is a seven-year-old boy .(改为同义句) Mike is ___ ____ ____