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The waste water, when ,should be clean enough to meet standards.A. releasingB. being relea

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解决时间 2021-03-22 12:49
  • 提问者网友:那叫心脏的地方装的都是你
  • 2021-03-21 12:17
The waste water, when ,should be clean enough to meet standards.
A. releasing
B. being released
C. released
D. to be released
最佳答案
  • 五星知识达人网友:千夜
  • 2021-03-21 13:43
A. releasingB. being released(答案→)C. releasedD. to be released解析:句意:废弃的水在排放时,应该被净化到符合标准。When引导时间状语从句,完整的句子应该为“When the waste water is released, it should be clean enough to meet standards.”当从句主语和主句的主语一致,而且从句谓语动词为be动词时,从句中的主语和谓语动词可以省略,故原句可以省略成“When released, the waste water should be clean enough to meet standards.”故选C。
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  • 1楼网友:不甚了了
  • 2021-03-21 14:51
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