Пожалуйста помогите мне пожалуйста решить

Ответ:

1) there is a desk in the classroom.

2) there aren't three books in my schoolbag.

3) is there a dog in the park?

4) are there two mugs on the table.

5) there isn't a computer on the desk.

6) are there four pencils in the pencil case ?

7) there isn't a teddy bear on the bed.