关于I am 11 years old.今天有朋友说可以不可以years后面加上所有格呢?也就是years' old如题,为什么?

I am 11 years old怎么读 I am twelve years old. I am 20 years old. 关于I am 11 years old.今天有朋友说可以不可以years后面加上所有格呢?也就是years' old如题,为什么? I am 13 years old用13 years old提问 I am 11 years old改成否定句 I am fourteen years old.提问 I am twelve years old 英语疑问句 I am fifteen years old this__ I am five years old.同义 I am sixteen years old前一句是什么 i am five years old.old是什么词性? I am 13 years old 对13 years old提问I am 13 years old对13 years old提问________ _______ your I am thirteen years old.＝I am____the_____. I am_____ years old.i am a_____(boy, l am years old. i am twenty years old与 i have twenty years old区别? You are fifteen years old.I am fifteen years old,too.(同义句)____ ____ ____are fifteen years old.