（ 1 ）Are there four desks in the classroom?

（ 2）Are there flowers in the classroom?

（ 3）Try to make your own dialogues.

 
Tom: Look, this is our classroom. There is a blackboard in the front of the classroom.
Bob: Is there a TV in your classroom?
Tom: Yes, there is. There are four desks in the classroom.
Bob: Is there a ball in your classroom?
Tom: No, there isn't.
Bob: Is there a doll in your classroom?
Tom: No, there isn't.
Bob: Is there fish in your classroom?
Tom: Yes, there is.