I. Choose the words whose underlined part is pronounced differently from that of the others in each group 1. A. columnist B. frustrated C. study D. adulthood 2. A. helpline B. September C. embarrassed D. depressed 3. A. tense B. skill C. decision D. house-keeping 4. A. resemble B. adolescence C. independence D. destruction 5. A. delighted B. depressed C. embarrassed D. relative 6. A. drumhead B. illustration C. earplug D. drugstore 7. A. strip B. visual C. artistic D. remind 8. A. thread B. treat C. pleasure D. dead line 9. A. embroider B. preserve C. benefit D. effect 10. A. emotion B. shoulder C. cognitive D. cold 11. A. explore B. exotic C. destroy D. mentor 12. A. drumhead B. illustration C. earplug D. drugstore 13. A. strip B. mine C. line D. remind 14. A. thread B. treat C. pleasure D. deadline 15. A. embroider B. preserve C. benefit D. effect 16. A. treasure B. pleasure C. ensure D. measure 17. A. daughter B. author C. laundry D. sausage 18. A. dials B. calls C. says D. plays 19. A. education B. graduate C. individual D. confident 20. A. embarrassed B. awareness C. abandoned D. captain 21. A. concentration B. question C. attraction D. emotion 22. A. exist B. exchange C. extreme D. expect 23. A. recognize B. opinion C. adolescence D. conflict 24. A. urban B. craft C. organize D. Canada 25. A. artisan B. handicraft C. machine D. heritage 26. A. skill B. house-keeping C. tense D. decision 27. A. advice B. decision C. delighted D. helpline 28. A. study B. adulthood C. columnist D. frustrated 29. A. concentrate B. self-aware C. stressed D. tense 30. A. embarrassed B. depressed C. helpline D. empathise