March 17th is St. Patrick's Day. This is Ireland's most important national [?], but it is also a special day for Irish people living throughout the world. On St. Patrick's Day, people of Irish descent [?] the color green. This is the national colour of Ireland. It is the colour of the [?], a plant with three leaves on a single stem. The [?] is a symbol of Ireland and St. Patrick's Day. In many cities, St. Patrick's Day is celebrated with parades, dances, and festive [?]. People greet each other with good wishes and often send [?] to each other. Many shops are filled with green decorations and [?] and sweets are often decorated with the colour green. Some restaurants and pubs even sell [?] beer.