Ответ:

There are books in on the table.

There are children in the classrom.

There is a computer in the table.

There is a door in the classrom.

There is a pencils in the pencil-case.

Therr are boys and girls in the classrom.

There is a ruler on the table.

There is a rubber in the pencil-case.

There are school bags in the classrom.