本文目录一览：
- 1、What did I 与what have I的区别?
- 2、What did I 与what have I的区别?
- 3、What did I 与what have I的区别?
- 4、done的四种用法?
- 5、done的四种用法?
What did I 与what have I的区别?
首先what did i…… what have i…… 都可用于一般疑问句中，只是助动词不同，通常表示的时态也不同。 What did i……?通常用于一般过去时的提问，did 是do&does 的过去式，表示对发生在过去事情得疑问。 e.g. What did i do yesterday? I can't remember. 我不记得了， 我昨天干了啥。