这几个哪个正确?1. a boy of nine years

这几个哪个正确?1. a boy of nine years he's a boy of nine是什么意思 英语翻译A Clever BoyTony is a clever boy.He is nine years old.He the boy to school he was nine years old .的地方填什么a went,until 英语翻译John was nine years old,and he was a very naughty boy.Bu Jack is a boy of nine.(同义句） Jack is__ __ boy. a bit of ,a little,a little of,a few of ,a few,这几个哪个是正确的?它们后 请问:是a four years old boy?还是a four year old boy?正确 We all like the nine-years-old boy 改错 a ten years old boy和a ten-year-old boy哪个对?为什么? 英语翻译Little Peter is a boy of nine.He began to go to school t 阅读理解.      Little Peter is a boy of nine