Once ____,this power station will supply all the neighboring towns and villages with electricityA.it being completed B,it completed C.completed D.it completing为什么选C而不选B呢?
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![Once ____,this power station will supply all the neighboring towns and villages with electricityA.it being completed B,it completed C.completed D.it completing为什么选C而不选B呢?](/uploads/image/z/12816635-59-5.jpg?t=Once+____%2Cthis+power+station+will+supply+all+the+neighboring+towns+and+villages+with+electricityA.it+being+completed+B%2Cit+completed+C.completed+D.it+completing%E4%B8%BA%E4%BB%80%E4%B9%88%E9%80%89C%E8%80%8C%E4%B8%8D%E9%80%89B%E5%91%A2%3F)
Once ____,this power station will supply all the neighboring towns and villages with electricityA.it being completed B,it completed C.completed D.it completing为什么选C而不选B呢?
Once ____,this power station will supply all the neighboring towns and villages with electricity
A.it being completed B,it completed C.completed D.it completing
为什么选C而不选B呢?
Once ____,this power station will supply all the neighboring towns and villages with electricityA.it being completed B,it completed C.completed D.it completing为什么选C而不选B呢?
他们都解答的不够准确.不用it是因为没有必要.你见过having做前置状语的句子吧?比如talking with Anne,he walked into the officie.(他一边和Annie说话,一边走进办公室) 为什么前面不用He呢?就是因为前后的逻辑主语都是一致,所以没有必要写he.原句中it也一样是省略的.-ed做前置状语表被动,例句:Chased by bees,he jumped into the river.被蜜蜂追着,他一头跳进河里.
有不明白的追问哦.
这句话的意思是“一旦完成”, 发电站是被完成 而completed表被动 所以选C为什么不能用it 呢如果用it的话翻译过来是, 一旦它完成了……这时候it是主语,complete不再表被动而是表过去式 而实际上应该是被完成那A呢,为什么不行A是“一旦他正在被完成” 压根不合逻辑...
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这句话的意思是“一旦完成”, 发电站是被完成 而completed表被动 所以选C
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B裏:it completed
tense根本也不对 何况意思了