62. A) possible
B) potential
C) available
D) proficient
63. A) what
B) when
C) how
D) which
64. A) expose
B) explode
C) export
D) expand
65. A) those
B) this
C) these
D) that
66. A) which
B) it
C) that
D) and
67. A) affect
B) have affected
C) have been affected
D) affecting
68. A) anyhow
B) anyway
C) somehow
D) somewhat
69. A) due to
B) according to
C) as to D) because
70. A) originated
B) originated
C) to originated
D) originating
71. A) was combined to
B) was combined with
C) combined to
D) combined with
72. A) past
B) passed
C) through
D) passing
73. A) acquire
B) inquire
C) require
D) request
74. A) which
B) that
C) in which
D) in that
75. A) removes
B) takes
C) brings
D) dismisses
76. A) therefore
B) however
C) though
D) accordingly
77. A) result from
B) settle down
C) lie in
D) result in
78. A) effect
B) effort
C) afford
D) affect
79. A) natural
B) artificial
C) normal
D) unnatural
80. A) been accustomed to
B) been accustomed with
C) been familiar to
D) been familiar with
81. A) leads
B) leads to
C) guides
D) causes to
