Find the word which has a different sound in the part underline

PART A: PHONETICS :Find the word which has a different sound in the part underline.(1pt)

1.   A. decide                   B. exciting                C. exhibit                  D. organise

2.   A. educated               B. played                   C. recycled               D. changed

3.   A. chemistry             B. school                   C. mechanic              D. charity

4.   A. myth                      B. cycling                  C. itchy                      D. allergy