Đáp án:

Giải thích các bước giải:

18. D. Had sustainable tourism practices been implemented decades ago, many endangered ecosystems would now be thriving.

Dẫn chứng:

___, many endangered ecosystems would now be thriving.

Cấu trúc:

Had + S + V3, S + would + V (hiện tại) 

19. C

Dẫn chứng:

The implementation of responsible tourism practices helps protect…; moreover, (19) ___

20. A

Dẫn chứng:

Recognising the vital link…, (20) ___. This sustainable approach has led to numerous success stories…

21. B

Đoạn: Educational programs (21) ___ between human activities and ecosystem preservation.

22. B

Đoạn: 

…demonstrate its effectiveness… (22) ___, creating a ripple effect…

creating a tipple effect: ảnh hưởng lan rộng

23. B

Đoạn:

generate substantial revenue streams --> A 
ensuring the transmission of cultural practices --> C 
environmental stewardship --> D

Ko có đáp án B

24. A

Đoạn: ...has garnered significant attention

ganered: thu hút >< repelled: xa lánh

25. C

Đoạn: ...environmentally destructive activities

destructive = damaging

26. C

Đoạn: Some communities have encountered difficulties… preserving their traditional way of life.

27. B

Đoạn: the future… shines bright, though its success demands meticulous planning and adaptability.

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