Circle the word of which the underlined sound is pronounced differently from the others

I. Circle the word of which the underlined sound is pronounced differently from the others 
1.      A. divide                    B. religion                  C. primary                 D. comprise
2.      A. compulsory          B. industry                 C. hamburger            D. eruption
3.      A. enjoyed                 B. invited                   C. mended                 D. lasted
4.      A. machine                B. chair                      C. check                     D. child