The crocodiles ___ in the jungle.
were
The camel ___ in the desert.
was
The polar bears ___ in the polar region.
were
The gorillas ___ in the polar region.
weren't
The crocodile ___ in the river.
was
The camels ___ in the steppe.
were
The whale ___ in the ocean.
was
The penguins ___ in the jungle.
weren't