单选题 Remember that only a few of the living things that are produced can live. In general, those will live that are best fitted for living ______ they do.
  • A. where
  • B. what
  • C. why
  • D. how
【正确答案】 A
【答案解析】where在句中是关系副词引导定语从句：those that are best fitted for living where they do will live。