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18.5 介词+关系词

    1)介词后面的关系词不能省略。
    2)that前不能有介词。
    3) 某些在从句中充当时间,地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换。
      This is the house in which I lived two years ago.
      This is the house where I lived two years ago.
      Do you remember the day on which you joined our club?
      Do you remember the day when you joined our club?

上一条18.4 限制性和非限制性定语从句 下一条18.6 as, which 非限定性定语从句

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