Odd one out

Exercise 8: Odd one out.
1. A. story
2. A. ride
3. A. fever
4. A. school
5. A. many
6. A. singer
7. A. cartoon
8. A. garden
9. A. intelligent
10. A. character
11. A. engineer
12. A. stomachache
13. A. bike
14. A. write
15. A. apple
B. worry
B. like
B. very
B. chocolate
B. animal
B. worker
B. programme
B. question
B. greedy
B. apple
B. teacher
B. headache
B. motorbike
B. read
B. fox
C. fly
C. nice
C. bed
C. child
C. engineer
C. farmer
C. music
C. delicious
C. princess
C. because
C. farm
C. fever
C. plane
C. song
D. study
D. fish
D. well
D. children
D. friend
D. engineer
C. elephant
D. classroom
D. water
D. favourite
D. stupid
D. doctor
D. school
D. comic
D. sleep
D. lion