[单选] An event called One Day Without Shoes was held to raise money for the children in poor countries who can"t afford shoes． Millions of children are at risk（风险） of injury and disease 1 they can"t afford shoes， especially in some developing countries 2 children walk for miles every day to get to school and clean water． In some areas， 3 are needed for children to go to school， so they are prevented from getting a good education too． The event was organised by a shoe company 4 TOMS． In 2006，American traveler Blake Mycoskie was shocked（震惊的） to see that children in Argentina（阿根廷）couldn"t afford shoes to 5 their feet． In order to help them，he 6 TOMS． For every pair of TOMS shoes bought another pair is 7 to a child in need． Later that year he returned with 10，000 pairs of shoes made possible by TOMS 8 ． One Day Without Shoes has been 9 for five years． Last year over 250，000 people took part in it． Lots of celebrities（名人）joined in by going shoeless for the day 10 singer Alicia Keys and actresses Charlize Theron and Debby Ryan． For every pair of TOMS shoes bought， one pair was sent to a developing country to help children who cannot afford shoes．1．