sixteen-years-old与sixteen years old有什么区别sixteen year olds与sixteen-year-old都是什么时候用

sixteen-years-old与sixteen years old有什么区别sixteen year olds与sixteen-year-old都是什么时候用 Sixteen-year-olds什么词性 sixteen years old 什么词性 sixteen-years-old这样写正确吗 I am sixteen years old前一句是什么 Joe____(be)sixteen years old.填什么? I think ( ) should not be allowed to drive.A sixteen years old B sixteen-year-old C sixteen-year-olds I think ____should not drive anywhereA.sixteen-year-old B.sixteen-years-old C.sixteen-year-olds为什么 He is a sixteen-years-old boy这句对么 He had just turned sixteen years old.怎么译 I m sixteen years old改为一般疑问句 怎么问年龄? 例：hong wei will be sixteen years old . （ sixteen years old）划线提问 Tom is fifteen yeas old.Jim is sixteen years old.（合并为一句） 16岁 英语 怎么说是 sixteen-years-old还是sixteen-year-olds?还有 不加一横的？越来越混乱了 I think _B__should not be allowed to drive A sixteen years old B sixteen-year-olds 为啥选B? _ should be allowed to do some sports after school in the afternoon.A.Sixteen-years-oldB.Sixteen-year-oldsC.Sixteen-year-old Mary is sixteen years old,and I'm fourteen years old.So I'm her y____ sister. Nora was sixteen years old.She had a little beother.Her brother name was jim. i think sixteen years old should not be allowed to ( )A.sing B.drive C.dance