Questions:

（ 1 ） Try to make your own dialogues.

Marry: Look, this is our computer room. There are many computers in our computer room.
Lily: Is that man your computer teacher?
Marry: Yes, he is.
Lily: Is there a bookshelf in your computer room?
Marry: No, there isn't. We put books on the desks.
Lily: Are there some flowers in your computer room?
Marry: No, there are not.