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

choose the word that has the underlined part pronounced differently from the others 
31.     a.lifestival      b.native      c.diet      d.unique
32.      a.promise        b.pronounce       c.maintain       d.behave
33.      a.festival       b.suitable        c.bahaviour        d.practical
34.        a.original        b.relationship         c.interaction        d.conditional
35.       a.leisurely        b.respectful        c.cultural       d.certainly
giúp tớ với ạ!!!