What is it?
It's a fire truck / fire engine.
What are they?
They're taxis / cabs.
What kind of car is it?
It's a police car.
What kind of train is it?
It's a subway train.
What are they riding?
They're riding a moped / scooter.
What is it?
It's a helicopter.
What is it?
It's a tractor.
What is it?
It's a tricycle.
What is it?
It's a quad bike / ATV (all terrain vehicle).
What is it?
It's a dump truck.
What kind of van is it?
It's a camper van.
What is it?
It's a truck / lorry.
What is it?
It's an excavator.
What kind of car is it?
It's a race car.
What is it?
It's a snowmobile.
What kind of car is it?
It's an SUV (sports utility vehicle).
What is it?
It's a motorbike / motorcycle.
What is it?
It's an airplane.
What is it?
It's a train.
What is it?
It's a yacht.
What's he riding?
He's riding a bicycle / bike.
What kind of ship is it?
It's a cruise ship.
What is it?
It's a van.
What is it?
It's an auto-rickshaw / tuk-tuk / tempo / samosa / etc.
What are they?
They're hot air balloons.
What is it?
It's a bus.
What is it?
It's a school bus.
What is it?
It's a car.
What kind of ship is it?
It's a cargo ship / container ship.
What kind of aircraft is it?
It's a fighter jet.
What is it?
It's a submarine.
What is it?
It's a boat / sail boat.
What is it?
It's a tram.