11. I have a test to take tomorrow morning. If I ____ free time, I ____ to Cuc Phuong National Park with you.
A. had - would go B. will have - will go C. have - will go D. had - went
12. Phong Nha Cave has been regarded by the British Cave Research Association as the top cave in the world ____ its four top records.
A. despite B. with C. due to D. because
13. ____ the decisive assistance of the villagers, we would not be able to facilitate the ecotour.
A. But B. Neither C. With D. Without
14. According to the weather forecast, it will be fine at the weekend. If the weather ____ fine, we ____ on camping at the weekend.
A. were - would go B. was – went C. is - will go D. will be - go
15. After lunch, we take a short talk to the elephant camp ____ you will enjoy an exciting elephant riding.
A. where B. what C. that D. when
16. You can climb up Mount McKinley, the highest peak in North America, to explore the rest of Denali National Park in Alaska, and view some ____ wildlife.
A. interested B. spectacular C. excited D. great
17. The vast wilderness of Alaska offers some unbelievable ecotourism opportunities, and one of the most ____ tourism industries in the USA.
A. sustainable B. natural C. safe D. environmental
18. Villagers can compete against the commercial fishing and timber companies who ____ the natural resources of the area, taking as much as they want.
A. deplete B. lower C. leave D. decrease
19. The Mekong Delta is an extraordinary place that ____ international tourists.
A. offers B. considers C. attracts D. persuades
20. The areas are very ____ for tourists who love to study and discover.
A. suitable B. available C. successful D. aware
