Вариант 67

Ecotourism is getting more and more popular. It offers two things at once: (29) and entertainment. Most people agree that ecotourism is the most (30) branch of tourism. It makes profit without destroying (31) resources. When tourists choose eco trips, they stay in local houses with local people, not in (32) hotels. They travel on foot, by boat, bicycle or elephant to avoid pollution. However, such trips are not at all cheap. This is (33) the only disadvantage. But you can apply the principles of ecotourism every time you go on a normal holiday. You should remember that you're only a (34) and be as careful as possible.