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I. Choose the words whose underlined part is pronounced differently from that of the others in each group.

1. A. cover
B. go
C. flow
D. love

2. A. summer
B. fly
C. shy
D. sunny

3. A. slowly
B. blood
C. foam
D. sorry

4. A. now
B. grow
C. student
D. subject

5. A. busy
B. house
C. finish
D. school

6. A. excited
B. sure
C. computer
D. teach

7. A. nice
B. teacher
C. called
D. choir

8. A. chocolate
B. physics
C. student
D. many

9. A. explained
B. read
C. planned
D. break

10. A. size
B. gas
C. chore
D. singer

11. A. sun
B. town
C. judo
D. living

12. A. see
B. surround
C. library
D. cheap

13. A. country
B. down
C. studio
D. sun

14. A. flow
B. give
C. cover
D. shut

15. A. home
B. floor
C. story
D. so

16. A. November
B. love
C. stone
D. flower

17. A. fin
B. sorry
C. student
D. hungry