Choose the word that has the underlined part pronounced differently from the others

II.  Choose the word that has the underlined part pronounced differently from the others.

1.   a. pottery                     b. flower                      c. silent                        d. service

2.   a. girl                           b. expert                      c. open                         d. burn

3.   a. sentence                   b. world                       c. picture                      d. dangerous

4.   a. surfing                     b. collect                      c. concert                     d. melody

5.   a. worst                        b. learn                        c. control                     d. dessert