题目

Stave said that if he had known how it worked,he would have been told

提问时间：2020-10-19

答案

这是一个third conditional的句子阿叫做 pass future perfect：过去将来完成时-----------------if he had known how it worked,这后半句用了被动啊 he would have been told-----------------抛开句意原来应该是 if...