The tourist industry is considered to be the world’s largest industry. Before 1950 about one million people (1)……….abroad each year (2)………….by the 1990s the figure had (3)……….to over 400 million every year. …..(4)…large numbers of tourist, however, are beginning to cause problems. For example, in the Alps the skiers are destroying the mountains (5)…………..came to enjoy. Even parts of Mount Everest in the Himalayas are reported to be covered (6)………….old tins, tents and food that have been (7)………….away. But at a time when we have greater freedom to travel (8)…….ever before, more and more people are asking how they can enjoy their holiday (9)……causing problems by spoiling the countryside. Now there is a new holiday guide called Holidays That Don’t Cost the Earth. It (10)…………you how you can help the tourist industry by asking your travel agent or your tour operator the right questions before you go on holiday. 1. A. traveled B. came C. sailed D. were 2. A. as B. because C. but D. when 3. A. gone B. flown C. risen D. raised 4. A. Such B.More C. Few D. So 5. A which B. you C. who D. they 6. A. for B. on C. with D. below 7. A. put B. thrown C. given D. tidied 8. A. than B. when C. then D. while 9. A. outside B. instead C. beside D. without 10. A. says B. offers C. tells D. gives