Choose the word that has main stress placed differently from the others: 81. a. dependable     b. reliable                  c. remarkable             d. knowledgeable 82. a. detective         b. romantic                c. history                   d. adventure 83. a. biography        b. historic                  c. discover                 d. authorship 84. a. imaginary        b. scientific               c. advantage              d. reviewer 85. a. regulator          b. personal                 c. referee                 d. dangerous 86. a. procedure        b. indicate                  c. forefinger               d. enemy 87. a. opponent         b. penalize                 c. overtime                d. synchronized 88. a. windsurfing    b. equipment            c. amateur                  d. national 89. a. position           b. fingertip                c. athletic                   d. requirement 90. a. interesting       b. surprising              c. amusing                 d. successful