Each of the boys has a skate-board 这句话boy为什么要加s

Each of the boys has a skate-board 这句话boy为什么要加s Each of the boys has ( )a prize. Each boy has to take one 和 Each of the boys has to take one each boy each of us each of the boys each boy和each of the boys有什么区别 选择题_____ has a soccer ball.A.Each boys B.Each a boy C.A each ---------- the boys has a yellow shirt .A.Every of B.Each of .Each of the boys ___ a model car.A.have B.has C.is having I E【】 of the boys has a basketball. has a seat on the board of directors 英语翻译the new clubs for this term are on the board这句话里为什么要加for Each of boys和Each boy有什么区别?