改写方法如下：第一步：你先把hadn't拆开不要缩写,句子就变成了If I had not taken my sister's advice,I would have failed in the exam.第二步：把had提前到句首,句子变为Had I not taken my sister's advice,I wo...
这个虚拟语气怎么把if去掉 我不知道not放在哪里 感觉怪怪的
改写方法如下：第一步：你先把hadn't拆开不要缩写,句子就变成了If I had not taken my sister's advice,I would have failed in the exam.第二步：把had提前到句首,句子变为Had I not taken my sister's advice,I wo...