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

Find the word which has a different sound in the part underlined.
Question 1.   A. better                B. prefer                        C. teacher                 D. worker
Question 2.   A. near                 B. hear                           C. dear                      D. bear
Question 3.   A. concert            B. concern                      C. combine              D. collect
Question 4.   A. picture             B. tourist                        C. culture                  D. neighbour
Question 5.   A. government       B. absent                        C.  enjoy                  D. dependent
Question 6.   A. picture              B. return                         C. culture                 D. future
Question 7.   A. first                   B. bird                            C. girl                      D. sister
Question 8.   A. burn                  B. sun                             C. hurt                     D. turn
Question 9.   A. nurse                 B. surf                            C. picture                 D. return
Question 10.  A. hot                    B. hour                          C. hotel                    D. hobby
Question 11.  A. knife                 B. of                              C. leaf                      D. life
Question 12.  A. although           B. enough                      C. paragraph            D. cough
Question 13.  A. junk                  B. sun                            C. put.                      D. adult  
Quetion 14.   A. headache           B. architect                    C. chemical             D. children
Question 15.  A. aerobics             B. calories                     C. cycling               D. doctor
Question 16.  A. collection          B. tradition                    C. exhibition           D. question
Question 17.  A. usually              B. leisure                       C. version                D. composer
Question 18.  A. closure              B. leisure                       C. sure                     D. pleasure            
Question 19.  A. essential            B. traditional                 C. picture                 D. audition
Question 20.  A. discussion         B. vision                        C. treasure               D. decision
Question 21.  A. painter               B. prefer                        C. concert                D. perform
Question 22.  A. actor                  B. guitarist                     C. attract                 D. gallery
Question 23.  A. musical              B. delicious                   C. special                D. physician
Question 24.  A. document           B. naughty                     C. water                  D. audience
Question 25.  A. talk                     B. salt                            C. aunt                    D. cause
Question 26.  A. flower                 B. flour                          C. cow                   D. pork
Question 27.  A. soon                    B. food                          C. noodle               D. cook
Question 28.  A. draw                    B. wash                         C. wall                   D. walk
Question 29.  A. morning              B. forty                          C. forget                D. pork
Question 30.  A. aunt                     B. sauce                         C. caught               D. daughter