What happened 和 whats happened两者的区别： 是问 what happened？只是想知道过去所发生的事情， 而如果用whats happened？则强调对现在的影 … This is the present perfect, which is constructed using: What happened还是whats happenedwhat happened和whats happened都用于询问过去发生了什么事情，主要的区别在于语法和使用方式 … · here, whats is the contraction of what has. 接下来让我们看下what happen和what happened的用法区别： 1. 词性：what happen是用原形动词happen构成的现在时短语，而what happened是 … 表示“某地 (某时)发生了什么事”，常用“sth. + happen +地点/时间”这一结构来表 … The helping verb have …
What Happened When The Angel Opened The Lab Door
What happened 和 whats happened两者的区别： 是问 what happened？只是想知道过去所发生的事情， 而如果用whats happened？则强调对现在的影 … This is the present perfect, which is constructed using: What happened还是whats happenedwhat happened和whats happened都用于询问过去发生了什么事情，主要的区别在于语法和使用方式...
