Fill the gaps with the right words 1. A can fly without wings. 2. A carries people and cars on the water. 3. A big car for carrying people is a . 4. A can travel underwater. 5. An takes people to the hospital. 6. A big car which people use to fight fire is a . 7. A carries people up and down a mountain. 8. A can carry very heavy things. 9. A has two wheels. 10.A is a type of train. :