51. All the key words in the article are printed in type so as to at
    tract readers' attention.
    ［A］ dark
    ［B］ dense
    ［C］ black
    ［D］ bold
    52. The basic features of the communication process are identified in one question: Who says through what channel to whom?
    ［A］ how
    ［B］ when
    ［C］ what
    ［D］ such
    53. I didn't to take a taxi but I had to as I was late.
    ［A］ assume
    ［B］ suppose
    ［C］ mean
    ［D］ hope
    54. The hours the children spend in their one\|way relationship with television people undoubtedly affect their relationships with real\|life people.
    ［A］ in which
    ［B］ on which
    ［C］ when
    ［D］ that
    55. I'd rather have a room of my own, however small it is, than a ro om with someone else.
    ［A］ share
    ［B］ to share
    ［C］ sharing
    ［D］ to have shared
    56. In Disneyland, every year, some 800,000 plants are replaced because Disney refused to signs asking his "guests" not to step on them.
    ［A］ put down
    ［B］ put out
    ［C］ put up
    ［D］ put off
    57. difficulties we may come across, we'll help one another to overc ome them.
    ［A］ Wherever
    ［B］ Whatever
    ［C］ However
    ［D］ Whenever
    58. So many directors , the board meeting had to be put off.
    ［A］ were absent
    ［B］ been absent
    ［C］ had been absent
    ［D］ being absent
    59. On New Year's Eve, New York City holds an outdoor which attracts
    a crowd of a million or more people.
    ［A］ incident
    ［B］ event
    ［C］ case
    ［D］ affair
    60. American football and baseball are becoming known to the British public through televised from the United States.
    ［A］ transfer
    ［B］ deliveries
    ［C］ transportation
    ［D］ transmissions