There is a book on the desk. / There are manybooks on the shelf
There isn’t a book on the desk. / There aren’t any books on the shelf

Is there a book on the desk? / Are there any books on the shelf?
necesitas mas??

Is there a cafe?
Is there a computer?
las repuestas posibles son YES, THERE IS o NO, THERE ISN'T
nose si te sirven pero espero que si suerte