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The research is so designed that once (begun) nothing can be

答案:1  悬赏:50  手机版
解决时间 2021-04-10 13:53
  • 提问者网友:骨子里的高雅
  • 2021-04-09 22:31
The research is so designed that once (begun) nothing can be done to change it.括号里的词为什么...
The research is so designed that once (begun) nothing can be done to change it.括号里的词为什么用过去分词?

最佳答案
  • 五星知识达人网友:空山清雨
  • 2021-04-10 00:08

esearch 被动begin:that once (省略了the research is) begun nothing can be done to change it.


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