Question 19 is based on the passage you have just heard.

    Vaukin de Silva is a Brazilian who lives and works in New York. Brazil's most important product is coffee and coffee is Vaukin's business. He works for an international coffee institute. (19)It represents Brazil and several other countries that export coffee. The institute wants more people to drink more coffee. That hasn't been easy to do for the last few months. (20)A period of freezing weather destroyed a large part of Brazil's coffee crop. As a result, there has been a shortage of coffee throughout the world. The shortage has caused prices to go very high. Many people are talking about giving up coffee until the prices come down again. All the countries that are represented in the institute want people to continue drinking coffee. They spend a lot of time explaining the recent rise in price to newspaper reporters. They want the public to understand the reason for the shortage. Among the goal, Vaukin was put in charge of an advertising campaign. The campaign will try to encourage people to keep on drinking coffee. Sometimes, Vaukin misses the beaches and tropical weather in Rio de Janeiro, but he likes the life in New York. (21)He is young, only 27 years old, and he is a good-looking bachelor. There are a lot of women to meet in New York and a lot of places to go with them. When he misses home, there are several Brazilian restaurants where he can go and speak Portuguese, his native language. (22)The last few weeks, however, he's been too busy to think about anything except coffee prices and his advertising campaign.

19. What does the passage say about the international coffee institute?

解析：四个选项均与it相关，听音时注意弄清楚it指代的内容及其作用。录音中明确提及该机构代表巴西及其他一些出口咖啡的国家。故C选项“它代表一些出口咖啡的国家”为正确答案。