twin brothers为什么brother变复数而twin不变

twin brothers为什么brother变复数而twin不变 Are you ( Yes,we are ( )brothers.A twin ,twin B twins twins C twins twin 为什么 The twin brothers 是第二人称还是第三人称,为什么? the twin brothers和twin brothers有什么不一样 the twin brothers look ___ ___each other are peter and john twin brothers? John and Jack are ___________(twin brothers;twins brothers) They are -- brothers,but they look differentA.twin B.twinsCtwin's D.twins'填什么,另外请解释一下为什么,twin是名词 They are ____ .A twin B twin brothers C twin sisters D twins The twin brothers get on very well.改成否定句 the twin brothers are doing t___ homework in the room the twin brothers usually walk to school 同义句转换 the twin brothers in our school look ( )different The twin brothers piay baseball outside.对outside提问 The twin brothers are playing with the balls. The twin brothers and neck and neck at the finish the twin brothers don't look the same（同义句）the twin brothers look___ ___ each other the twin brothers are getting dressed.的同义句 the twin brothers are _ _ _ _