1. metropolitana   breakdown van, tow-truck   motorboat   scooter   subway   Hint Half-n-half Clue   2. scooter   yacht   scooter   kayak   motorboat   Half-n-half Clue   3. linea aerea   monorail   glider   scooter   airliner   Half-n-half Clue   4. zattera   monorail   streetcar, tram   scooter   raft   Half-n-half Clue   5. camionetta   jet plane   cruiser   scooter   pickup truck, pick-up van   Half-n-half Clue   6. aereo a reazione   motorboat   jet plane   subway   sailboat   Half-n-half Clue   7. motoscafo   kayak   pickup truck, pick-up van   motorboat   canoe   Half-n-half Clue