happen是不及物动词,没有被动语态,因此不可说what is happened.
WHAT IS HAPPENING正在发生什么事情；
WHAT HAPPENED 发生了什么事情.
时态有别.
what happened 和WHAT IS HAPPEND的区别
3个回答
相关问题
-
what is happening 和 what has happened what happend 这个怎么弄清楚什么
-
what happened和what is going on 的区别
-
what happened 和what did happen的区别
-
what happened to 和 what had happened to的区别是什么?
-
请问What happens?与What happening?的区别?
-
what happened with和what happened to用法上有区别吗?
-
“what's the happening ”和“what the happened”的区别是什么啊?
-
350.What __yesterday evening?A.did you happen B.you happende
-
怎么区别使用：what is the matter with 与..what happened to
-
what‘s happend 还是 what’s the happend