The fire _______ before the fire-fighters arrived.A.has been put outB.was put outC.had put outD.had

题目简介

The fire _______ before the fire-fighters arrived.A.has been put outB.was put outC.had put outD.had

题目详情

The fire _______ before the fire-fighters arrived.
A.has been put outB.was put out
C.had put outD.had been put out
题型:单选题难度:中档来源:不详

答案

D
考查时态。根据the fire-fighters arrived用一般过去时,故大火扑灭是过去的过去,即过去完成时,用其被动形式。句意:消防员到达之前,大火已经被扑灭了。

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