英语中有补语从句吗?看了曲刚的“一张大表讲清英语语法”,里面新开了一个概念,“补语从句”,查阅各种资料找不到类似说法.比如'Hetoldhiswifewhathappened.'还有'Mywifeaskedmewhichkindofdress

　　英语中有补语从句吗?

　　看了曲刚的“一张大表讲清英语语法”,里面新开了一个概念,“补语从句”,查阅各种资料找不到类似说法.比如'Hetoldhiswifewhathappened.'还有'Mywifeaskedmewhichkindofdresssheshouldchoose'两句中what和which引导的两个句子应该如何理解?