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问题

Not only the switches but also the old


Not only the switches but also the old wiring ______ changed.

  • A have
  • B are
  • C have been
  • D has been
参考答案
参考解析:

     13.遇到 not only … but also的句型时,谓语动词的单复数与靠近它的名词一致。Old wiring是单数,谓语动词为单数。选项 D 是正确的。句子大意:不光是开关,就连旧的线也换了

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