Exercise 1: Find the word which has a different sound in the part underlined.
1. A. when B. where C. best D. detective
2. A. weather B. newsreader C. teaching D. repeat
3. A. clumsy B. cute C. but D. just
4. A. earth B. thanks C. feather D. theater
5. A. although B. think C. with D. they
6. A. thirty B. theme C. both D. breathe
7. A. brother B. weather C. through D. than
8. A. schedule B. comedy C. educate D. when
9. A. channel B. game C. national D. relax
10. A. show B. programme C. sport D. most
11. A. this B. feather C. smooth D. south
12. A. leather B. that C. theatre D. then
13. A. nothing B. gather C. method D. death
14. A. something B. brother C. them D. weather
15. A. those B. there C. thank D. without
16. A. soothe B. south C. thick D. athlete
17. A. healthy B. northern C. thirsty D. mouth
18. A. this B. these C. them D. earth
19. A. think B. month C. everything D. clothing
20. A. sixth B. another C. teeth D. author
21. A. tooth B. clothing C. bath D. both
22. A. gather B. monthly C. father D. brother
23. A. though B. thank C. through D. thin
24. A. clip B. give C. twice D. stupid
25. A. studio B. documentary C. cute D. stupid