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