Where can he go?
He can go to the beach/sea/ocean.
Where can they go?
They can go to the playground.
Where can we go?
We can go to Disney Land!
Where can the cat go?
The cat can go to bed.
Where can the dog go?
The dog can go to the pool.
Where can you go?
I can go to the forest.
Where can they go?
They can go to the museum.