Question

I should not have laughed if I _________ you were serious. A．thought B．would think C．had t

I should not have laughed if I _________ you were serious. A．thought B．would think C．had thought D．have thought

Answer 1

C

试题分析：句意：如果我认为你是严肃的，我不会笑的。根据 should not have laughed可知这是对过去事实的假设，因此if引导的条件状语从句用过去完成时。故选C。 考点：