Here you have the video about St. Patrick.

http://www.history.com/topics/st-patricks-day/history-of-st-patricks-day

These are the sentences to complete:

1. He was from .............
2. He was kidnapped at .............
3. He converted to .............
4. He worked as a Christian .............
5. He was honored as the .................... of Ireland
6. Myth goes that he drove all ............ from Ireland 
7. He used three leaves of a .................. to explain the Holy Trinity
8. Shamrock didn't really..............
9. The tradition of having parades started in.......
10. The first parade dates to .............
11. The largest and longest parade is now held in .............