摘要： The fire before the fire-fighters arrived. A. has been put out B.was put out C. had put out D. had been put out
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The fire _______ before the fire-fighters arrived．
A．has been put out B．was put out
C．had put out D．had been put out
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The fire _______ before the fire-fighters arrived.
A. has been put out B.was put out C. had put out D. had been put out
查看习题详情和答案>>The fire _______ before the fire-fighters arrived．
A．has been put out B．was put out
C．had put out D．had been put out
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