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找出句子错误并写出正确答案Doesanyoneknowifthebridgewasbrokendownlastnight?找出一处句子错误并写出正确答案

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找出句子错误并写出正确答案
Does anyone know if the bridge was broken down last night?
找出一处句子错误并写出正确答案
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答案和解析
Does anyone know if the bridge had been broken down last night?此句意思是,有人知道昨晚桥是否被拆了?发问人,现在问在昨晚桥是否已经被拆掉了,桥被拆掉属于发生在昨晚的过去.应该用过去完成时态~