He has a soccer ball.变复数.是They have some soccer balls.还是They

He has a soccer ball怎么变复数?He have soccer balls是错误的. He has a soccer ball变复数为什么he要变they,难道不是只用改ball去a吗?为什么? They have a soccer ball?该疑问句 They hava a soccer ball.怎么变一般疑问句? He has a soccer ball.改为复数形式. He has a soccer ball怎么边复数句啊! 改疑问句：He has a soccer ball. We have five volleyball改否定句 He has some soccer balls 一般疑问句.. They don't have soccer balls.改为肯定句 为什么 He has a book.变复数为They have some books.he 变成了they 但是This my daughter has a computer.l have some soccer balls.ther hav we have three soccer balls（2）Anna has a basketball（3）he watc