题目描述：
if it had not been forIf it had not been for your help,i could not have done it.
这个句子里有2个"it"
前面这个做主语的"it"指什么(后面的it不用讲了)?
若你是高手,请多举几个包含有"if it were / if it had been"的例子帮助记忆,但这种虚拟句型不用讲解了.
要分的速度>>>>>>>>>>>>>>>>
答案解析
【答案】这里的it也是指代“这件事”,如果这件事没有你帮忙……If I were you ,I could manage it easily.If it had been your turn ,you might have gained the chance.If it were thought over more carefully ,we couldn'...
【其他答案】前一个it应该没有具体含义，就像\"it's time to...\相关题目
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