69. A. Encourage
70. A. understand
71. A essential
72. A. crocodile
73. A. habitat
74. A.classify
75. A. endangered
76. A. mosquito
77. A. unnoticed
78. A. imagine
79. A. recommend
80. A. character
81. A. dependable
82. A. detective
83. A. Biography
84. A. Imaginary
85. A. regulator
86. A. procedure
87. A. opponent
88. A. windsurfing
89. A. position
90. A. interesting
91. A. understand
92. A. applicant
93. A. dangerous
94. A. comfortable
95. A. elegant
96. A. difference
97. A. Beautiful
B. determine
B. grandparents
B. furniture
B. corridor
B. pollution
B. biologist
B. survival
B. animal
B. reunited
B. opinion
B. thoroughly
B. publisher
B. reliable
B. romantic
B. historic
B. scientific
B. personal
B. indicate
B. penalize
B. equipment
B. fingertip
B. surprising
B. engineer
B. uniform
B. parachute
B. employment
B. regional
B. surban
B. effective
C. emphasize
C. family
C. opposite
C. enormous
C. construction
C. benefit
C. commercial
C. crocodile
C. incredible
C. incredible
C. travelling
C. wonderful
C. remarkable
C. history
C. discover
C. advantage
C. referee
C. forefinger
C. overtime
C. amatuer
C. athletic
C. amusing
C. benefit
C. yesterday
C. popular
C. important
C. musical
C. Internet
C. favourite
D. maintenance
D. wonderful
D. fortunate
D. northerly
D. extinction
D. serious
D. industry
D. buffalo
D. survival
D. wilderness
D. fascinate
D. understand
D. knowledgeable
D. adventure
D. authorship
D. reviewee
D. dangerous
D. enemy
D. synchronized
D. national
D. requirement
D. successful
D. Vietnamese
D. employment
D. magazine
D. surprising
D. important
D. character
D. popular