2.Are there any children in the classroom?No, there aren't.
3.Are there any books on the shelves?Yes, there are.
4.Are there any planets near the window?Yes, there are.
5.Are there any posters in your bedroom?No there aren't.
6.Is there a pen in your bag?No, there isn't.
7.Is there a notice board on the wall?No, there isn't.
8.Are there any computers in the school?Yes, there are.