Neste texto, onde estão os verbos TO BE?

The front part of the Nautilus was where Captain Nemo lived. The first room
from the center of the ship was the dining room.
In front of the dining room was a large library. I gasped with joy when I saw
it. There were more than twelve thousand books. Hundreds of the books were
about ocean science. It was an underwater university!
The next room was the Grand Salon. Captain Nemo used this big room as a
living room. There were some dials and meters on one wall. These instruments
helped him watch over the ship at all times.


Me ajudem por favor!