应该是c处,将would have had改为would have 这属于if引导的虚拟条件句,对将来事实的假设,在非真实条件状语从句中,谓语动词按正常情况“后退一步”。也就是:①与过去事实相反,在从句中用过去完成时形式表示。 ②与现在事实相反,在从句中用过去一般时形式表示。 ③与将来事实可能相反,在从句中用过去将来时形式表示。 主句中则用情态动词would, should, could 等加一个与从句一致的动词形式。 例:If I had come her yesterday, I would have seen him. If I were a teacher, I would be strict with my stude...