That 10-year-old boy______(can swim) at the age of 6.正确形式填空

This is an 8-year-old boy.That girl is 7 years old . That boy is about twelve-year-old.错在哪?为什么错 a thirteen-year-old boy的中文翻译 a thirteen-year-old boy=什么? 11-year-old boy同义句转换 一个10岁的男孩是“a ten-year-old boy还是a ten years old boy? _____(a/an)1-year-old boy _____(a/an)8-year-old boy _____(a/an)11-year-old boy_____(a/an)13-year-old boy a twenty year old boy对还是a twenty years old boy对哪个等于 a twenty-year-old boy? 是a one-year-old boy还是an one-year-old boy a 11-year-old boy还是an 11-year-old boy a five-year-old boy还是a five-year old boy a four-year-old boy可以说成a four-year old boy I won't believe that the five-year-old boy can read five thousand words___I have tested him myself. 10 year old age I don’t believe that this＿＿boy can paint such a nice picture.A:five-year-old B:five-years-old C:five years old D:five-year-olds 10.Mr.Black has a ___.A.ten year old boy B.ten -years old boy C.boy of ten year old D.boy of ten My little brother is ____.A.a six-years old boy B.a six-year-old boy C.a six-years-old boyD.a six-year old boy Jim Smith is a( )boy A16 years old B8 years old C16-year-old D8-year-old