Question

【题目】)If you ______ the failed experiences, you would not have made such a mistake in your homework.

A．refer to B．have referred to

C．referred to D．had referred to

Answer 1

【答案】D

【解析】考查虚拟语气。表示假设的虚拟语气，用在对过去事实相反的假定上，从句用过去完成时“had+过去分词”，主句用would/should/might/could + have + 过去分词。refer to是一个固定结构，意为“查阅、参考”。句意：如果你参考一下这些失败的经历，你就不会在你的家庭作业中犯下这样的错误了。故选D。