Question 24 is based on the passage you have just heard.

    Andorra, one of the smallest countries in the world, is located high in the mountains between France and Spain. (22) The country covers only 179 square miles. That is less than half the size of New York City. High, rocky mountains surround Andorra. (23) Until the 1930s, travelers had difficulty in reaching the country. Up until that time, people in Andorra lived in the way they had lived for centuries. Most Andorrans worked as farmers. Things did not change quickly. (24) When roads were built from France and Spain to Andorra in the 1930s, life picked up speed. Tourist began to visit the small country. These tourists brought in a lot of money to spend while visiting. Many people in Andorra found new jobs in shops or hotels. These changes helped to keep young people in Andorra. There were many more jobs than before the roads were built. Today tourists provided 80 to 90 percent of Andorra’s income. More than a million people visit each year. They come to view the rough mountains. They enjoy the quiet way of life. Most people are also interested in the ancient buildings. There are many shops for tourists to browse in, clothes, watches, wines and other items are sold at low prices in Andorra. Import fees are low, so tourists enjoy the inexpensive shopping. Most of the businesses in Andorra are owned by its citizens. There are not many foreign businesses. Some Andorrans still farm and raise sheep and cattle. (25) But most are now involved with the tourist trade.

(24). What event changed the situation in Andorra?

解析：C。本题目为细节题。问题为：什么事件改变了安道尔的现状？根据原文“When roads were built from France and Spain to Andorra in the 1930s, life picked up speed. Tourist began to visit the small country.”可知road是关键词，当修建了从法国和西班牙到安道尔的道路后，游客开始访问安道尔，故正确答案选C。