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。

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大学英语三级A级

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