听力原文： When youre lying on the white sands of the Mexican Riviera, the stresses of the world seem a million miles away. Hey, stop! This is no vacation — you have to finish something! Here lies the problem for travel writer and food critic Edie Jarolim. 'I always loved travelling and always liked to eat, but it never occurred to me that I could make money doing both of those things,' Jarolim said. Now you can read her travel advice everywhere in Arts and Antiques, in Brides, or in one of her three books — The Complete Idiot Travel Guide to Mexicos Beach Resorts. Her job in travel writing began some eight years ago. After getting a PhD in English in Canada she took a test for Frommers Travel Guides, passed it, and got the job. After working at Frommers, Jarolim worked for a while at Rough Guides in London, then Fodors, where she fell so in love with a description of the Southwest of the US that she moved there. Now as a travel writer, she spends one-third of her year on the road. The rest of the time is spent completing her tasks and writing reviews of restaurants at home in Tucson, Arizona. As adventurous as the job sounds, the hard part is fact-checking all the information. Sure, its great to write about a tourist attraction, but youd better get the local museum hours correct or you could really ruin someones vacation. Questions 19 to 21 are based on the passage you have just heard. 19. Which country does Jarolim live in now? 20. What is most difficult for Jarolim? 21. What do we know about Jarolim from the passage?20．