41．
[A]want
[B]have
[C]know
42．
[A]either
[B]neither
[C]none
43．
[A]what
[B]who
[C]which
44．
[A]sorry
[B]illness
[C]importanee
45．
[A]dark
[B]bright
[C]small
46．
[A]over
[B]around
[C]off
47．
[A]eyes
[B]face
[C]back
48．
[A]but
[B]or
[C]so
49．
[A]falldown
[B]fallinto
[C]fallacross
50．
[A]right
[B]left
[C]face