英语自学网 发表于 2016-7-9 17:34:15

英语语法指导: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 (过去), it would be very cold today (现在).
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