81.
[A] just
[B] never
[C] ever
[D] even
82.
[A] read
[B] known
[C] fixed
[D] written
83.
[A] natural
[B] real
[C] false
[D] clear
84.
[A] is
[B] works
[C] has
[D] teaches
85.
[A] group
[B] party
[C] class
[D] play
86.
[A] invent
[B] discover
[C] teach
[D] continue