Fter Virtue by Alasdair MacIntyre

After the reading, After Virtue by Alasdair MacIntyre (available here 4.+Macintyre.pdf [Chapter 14]), please answer the 5 reading questions ( the first 5not the 5 discussion questions).
1.Why do chess, architecture, and farming qualify as practices, while tic-tac-toe, bricklaying, and planting turnips do not?.
2.How do internal goods of a practice differ from external goods achieved by a practice?.
3.How is the notion of virtue related to the notion of a practice? .
4.Why are the virtues of justice, courage, and honesty essential to participating in a practice?.
5.Why would virtues become endangered in a society in which the pursuit of external goods predominates over the pursuit of internal goods?