i'm nine years old 的years old可以省略吗

i'm nine years old 的years old可以省略吗 I'm nine years old 对nine提问 I'm 13 years old I started learning English when I was nine years old i'm twelve years old.my friend is twelves years old,too .的同义 I have been collecting stamps _______i was nine years old 英语同义句改写1.Ann is nine years old.Amy is nine years old,too.2.M I’m 12 years old.同义句 I‘m 12 years old today 翻译 I'm fifteen years old.的同义句 I'm (six years old).根据括号里的提问( ) I'm 15 years old.的同义句是什么?