This suit is rather dirty now. It’s some time since it______ (wash).

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问题 This suit is rather dirty now. It’s some time since it______ (wash).

选项

答案was washed

解析 被动语态。由于从句的主语与谓语动词之间是被动关系,又因since从句中的动作或状态发生在过去,因此,此处需要用一般过去时的被动语态,即were/was+过去分词。[例句] Many lives were lost in the earthquake.许多人在这次地震中丧生。
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