1、There is a book on the desk.改为复数形式 2、There are some kites

1、There is a book on the desk.改为复数形式
There are some books in the desk.
2、There are some kites on the wall.改为否定句
There are not any kites on the wall.
3、There are some apples in the bag.改为一般疑问句
Are there any apples in the bag?
4、There are 20 students in our group.对20 提问
How many students are there in your group?
5、Mr.Green has two sons.对 two 提问
How many sons does Mr Green have?