I. Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. ⇱
II. Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions. ⇱
III. Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following sentences. ⇱
Question 11. Efforts are done in the hope of preserving all species and maintaining the ecological balance.
Question 12. Over forty percents of the world's species are estimated to be at risk of extinction.
Question 13. Sea turtles have lived in the world's oceans for more than 100 millions years.
Question 14. Many nations protect endangered species by forbidding hunting, to restrict land development and creating preserves.
Question 15. Many animal species are becoming endangered or even extinction due to habitat destruction.