I. Choose the words whose underlined part is pronounced differently from th others in each group. 1. A. measure B. leather C. mean D. feather 2. A. treatment B. earplug C. hearing D. fear 3. A. poison B. visual C. measure D. pleasure 4. A. thermal B. litter C. permanent D. service 5. A. affect B. cholera C. pollutant D. radiation 6. A. artistic B. academic C. catholic D. dramatic 7. A. energetic B. majestic C. emphatic D. pathetic 8. A. critical B. logical C. medical D. biological 9. A. chemical B. brochure C. mechanical D. orchid 10. A. initial B. tactical C. topical D. critical 11. A. heroic B. government C. poetic D. radio 12. A. atmosphere B. national C. aquatic D. apartment 13. A. resident B. medical C. illustrate D. electric 14. A. symbolize B. continent C. introduce D. Japanese 15. A. paradise B. iconic C. official D. scientist 16. A. sharpen B. battery C. landline D. transmit 17. A. pollution B. earplug C. dump D. dust 18. A. untreated B. measure C. pleasure D. bread 19. A. physical B. visual C. music D. because 20. A. thermal B. thankful C. there D. thorough 21. A. plates B. cakes C. mates D. places 22. A. changed B. learned C. laughed D. arrived 23. A. emergency B. resident C. deposit D. prefer 24. A. wanted B. decided C. visited D. looked 25. A. prison B. limestone C. kind D. tribe 26. A. which B. who C. when D. where 27. A. carry B. hard C. card D. yard 28. A. twice B. flight C. piece D. mind 29. A. about B. around C. sound D. young 30. A. cover B. oven C. coffee D. company