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—The light___________on for long.
—Oh, I am sorry , I will go and turn it off.
A.has been leftB.has leftC.had been leftD.had left
A

试题分析:考查时态,句意:--等开着很长时间了。--抱歉,我马上去,把它关了。说明等从过去到现在一直开着,和一段时间连用,用现在完成时,因为the light和leave是被动关系,用现在完成时的被动。选A。
点评:时态的考查要根据上下文的语境进行,要根据句子中的关键词来考查句子的时态。这题的关键词是后面的for long,另外考虑时态要注意语态问题。
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