Choose the correct preposition by/in/on.

1. My sister goes to work ... car every day. 2.Kim usually goes to the park ... foot. 3.We often go ... holiday in August. 4.My best friend lives ... Italy. 5. Melanie is sitting ... an armchair. 6. She wants to go home ... a taxi. 7. I am going to Spain ... air. 8. They are travelling to Italy ... ship.