who has a soccer ball?中为什么要用has啊?

who has a soccer ball?中为什么要用has啊? 改疑问句：He has a soccer ball. He has a soccer ball.变复数.是They have some soccer balls.还是They have soccer balls. He has a soccer ball怎么变复数?He have soccer balls是错误的. She has a soccer ball.对画线部分提问 soccer ball提问 Li Ping has a soccer ball.(改为一般疑问句） She has a soccer ball.（改为否定句） She has a soccer ball.改为—般疑问句. He has a soccer ball怎么边复数句啊! Each boys has a soccer ball .的翻译 Jenny has a soccer ball.(改为一般疑问句） l,my,has,brother,a,ball,soccer,but,don't 看问句写答句Yeah,my uncle has a soccer ball She has a soccer ball (改为否定句) Nick has a soccer ball.改为否定句 Palu has a soccer ball 改为一般疑问句 并回答 his uncle has a soccer ball (变为否定句） 英语翻译What happens inside the skull of a soccer player who repeatedly heads a soccer ball?That question motivated a challenging new study of the brains of experienced players that has caused discussion and debate among soccer players,and some a