是谁呀who is it?为什么用it不用she或he?

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• He worked late into night,( ) a speech.选哪个选项 A prepare B prepare for 理由的确如网友所言，这道问题的正确形式应为：He worked late into the night,a speech.A preparing B preparing 以下是本人查的一点两个词的区别，供各网友参考：prepare sth．意为“准备某事”强调准备的过程或动作，宾语必须是这一动作的直接承受者；另有“配置、调制”之意。prepare for意为“为……作准备”，for后面的宾语是准备的目的，即所要应付的情况。prepare "准备什么事情" She is preparing the food.(她在准备食物) prepare for "为什么事情做准备" She is preparing for their supper.(她在为他们的晚餐作准备) "perpare"后的"the food"就是准备做的东西"perpare for"后的"thei
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• 是谁呀who is it?为什么用it不用she或he?
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