If I had known it earlier,I would have made preparations.
题目
If I had known it earlier,I would have made preparations.
问：我知道是虚拟语气,也知道翻译,我就问：主句I would have made preparations是什么时态,为什么要这样,有什么规律?
答案
主句是现在完成时态,从句是过去完成时态,一般主句要晚一个时态.这是习惯使然,也就是语法约定.
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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