Choose the correct preposition.

1. Last summer they went to the USA. They went ... plane.

2. I am afraid of travelling ... ferry.

3. Have you ever been ... a ship?

4. It is expensive to go ... a taxi.

5. I usually go ... school bus.

6. He has a yacht. He often travels ... yacht.

7. They first met ... a train.

8. In ancient times people travelled ... horses.

9. Going ... foot is good for your health.

10. To avoid pollution we should go ... bicycles more.