Exercise 2. Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.

6. A. suggest                B. involve                C. travel                D. sustain

7. A. natural                B. safari                C. interest                D. benefit

8. A. butterfly                B. departure                C. tradition                D. protection

9. A. environment        B. ecology                C. sustainable                D. beneficial

10. A. ecotourism        B. relaxation                C. preservation        D. disappointed

Unit 10 - (HS)