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    3 混合条件句 主句与从句的动作发生在不同的时间.这时主.从句谓语动词的虚拟语气形式因时间不同而不同.这叫做混合条件句. If you had asked him yesterday, you would know what to do now. (从句与过去事实相反.主句与现在事实相反.) If it had rained last night , it would be very cold today . 【查看更多】

     

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