想知道it做形式主语的主从
例:it is a pity that he has made such a stupid mistake.
和
主语从句的虚拟语气,(it is +形容词/名词+that…)句型,
例:it is a shame that he should have done such a thing .
这两句有什么区别吗?
怎么判断从句后的动词是否用原型还是不用?
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it's natural that she (should) do so.她è¿æ ·åæ¯å¾èªç¶çã
it is a pity that Herry (should)be so caleless.çéæ¾äº¨å©å¦æ¤ç²å¿ã
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