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这叫做混合条件句。
If you had asked him yesterday, you would know what to do now.
If it had rained last night , it would be very cold today .
上一篇: 英语学习之虚拟条件句的倒装
下一篇: 英语学习之need不必做和本不该做
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