It looks like a train, but it goes underground.
The subway (American English) or the tube (British English).
When you have no transportation at all, you have to go...?
On foot.
How can you go to Manaus fast?
By plane.
What is very similar to the subway?
The train.
A Ferrari and a Porche are very expensive...
Cars.
It's a very big kind of transportation that goes in the water.
It's a ship.
How do you cross a river when there's no road?
By ferry.
You can have about forty people inside this kind of transportation for the city.
It's a bus.
It's a small kind of transportation for just one person or two people.
It's a bicycle