题目内容
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 |
D
解析
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题目内容
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 |
D
解析