What accident happened recently in Japan?这个特殊疑问句为什么没有助动词?是不是要改成 What accident did happened recently in Japan?还是有种语法

分类: 作业答案 • 2022-02-18 20:26:47

问题描述：

What accident happened recently in Japan?这个特殊疑问句为什么没有助动词?
是不是要改成 What accident did happened recently in Japan?还是有种语法

答