1.We have seven classes every day.(改否定句)
We don't have seven classes every day.
2.He has two volleyballs (改一般疑问句)
Does he have two volleyballs?
3.She has a brother.(改为复数形式)
They have brothers.
4.Is there a map of china in your class?(改为同义句)
Does your class have a map of China in it?
5.He has a computer game.(改否定句)
He doesn't have a computer game.