I. Choose the words whose underlined part is pronounced differently from that of the others in each group 1. A. wash B. warm C. wall D. walk 2. A. pan B. bag C. water D. add 3. A. sauce B. aunt C. caught D. daughter 4. A. document B. naughty C. audience D. water 5. A. one B. bottle C. coffee D. pot 6. A. morning B. what C. problem D. yogurt 7. A. talk B. salt C. sausage D. cause 8. A. pork B. flower C. cow D. flour 9. A. noodle B. food C. soon D. cook 10. A. apple B. fragrant C. fragile D. traffic 11. A. bitter B. delicious C. diet D. music 12. A. pepper B. vegetarian C. shelter D. pen 13. A. food B. tooth C. noodles D. flood 14. A. sunburn B. tuna C. tutor D. unusual 15. A. warm B. wash C. wall D. walk 16. A. pan B. bag C. wash D. add 17. A. sauce B. daughter C. caught D. aunt 18. A. monthly B. homework C. closer D. poem 19. A. notebook B. borrow C. other D. follow 20. A. cupboards B. chopsticks C. tourists D. laptops 21. A. windows B. tables C. apartments D. pictures 22. A. climb B. busy C. because D. biscuit 23. A. butter B. put C. sugar D. push 24. A. great B. bread C. break D. steak 25. A. weight B. height C. eight D. vein 26. A. too B. food C. soon D. good