Choose the word whose underlined part is pronounced differently

I. Choose the word whose underlined part is pronounced differently. 1. A. beautiful B. convenient C. peaceful D. sleepy 2. A. bread B. cheap C. sea D. cheek 3. A. quiet B. wide C. exciting D. children 4. A. teenager B. see C. coffee D. street 5. A. idea B. cinema C. interesting D. difficult 6. A. teacher B. weather C. bean D. dream 7. A. dinner B. free C. meal D. film 8. A. three B. easy C. noisy D. sheep 9. A. live B. wide C. bicycle D. exciting 10. A. feet B. seat C. head D. team 11. A. busy B. city C. think D. police 12. A. great B. heat C. cheek D. peaceful 13. A. historic B. expensive C. office D. finally 14. A. coffee B. see C. agree D. free 15. A. express B. exciting C. expensive D. excellent