change 86 you decide is desirable for you to change.

　　67.[A] known[B] unknown

　　[C] surrounded[D]unlimited

　　68. [A] mask [B] armor

　　[C] reality[D]fact

　　69. [A] frustrating [B] exciting

　　[C] interesting[D]encouraging

　　70. [A] discovering [B] to discover

　　[C] be discovered[D]to be discovered

　　71. [A] relies on [B] lies in

　　[C] based on[D]according to

　　72. [A] how [B] why

　　[C] what[D]whether

　　73. [A] to [B] on

　　[C] with[D]in

　　74. [A] Both[B] Either

　　[C] One[D]Neither

　　75. [A] therefore [B] however

　　[C] even[D]but

　　76. [A] Therefore [B] Moreover

　　[C] Then[D]However

　　77. [A] possibility [B] pattern

　　[C] anxiety[D]decision

　　78. [A] instrument [B] appliance

　　[C] equipment[D]tool

　　79. [A] course [B] process

　　[C] track[D]direction

　　80. [A] beware [B] aware

　　[C] awake[D]unconscious

　　81. [A] choose [B] change

　　[C] distinguish[D]compare

　　82. [A] transaction [B] transition

　　[C] transmission[D]transformation

　　83. [A] much [B] more

　　[C] few[D]little

　　84. [A] desire [B] frame

　　[C] stage[D]step