IV. Write the correct form of the words in brackets. 16. In New York City, riding the bus is often cleaner and more __________ than using the subway. (COMFORT) 17. The Louvre Museum is one of the world’s most famous museums and a __________ landmark in Paris. (HISTORY) 18. The hotel shuttle service is __________. It leaves from here every 30 minutes. (RELY) 19. On Thanksgiving Day, it is __________ for the Americans to share a family meal and watch sporting events. (TRADITION) 20. On Easter Sunday, parade __________ often wear colorful costumes and amazing hats. (PARTICIPATE)