· simple past tense is used to talk about actions and events that both started and ended in the past. The helping verb have 2. 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是用动 … · here, whats is the contraction of what has. This is the present perfect, which is constructed using: 表示“某地 (某时)发生了什么事”，常用“sth. + happen +地点/时间”这一结构来表达，此时主语 … Happened的用法如下： 1. happened是 不及物动词,作“发生”解时,可指偶然的事故,也可指有计划或无计划发生的事。一般以事件、环境、形势等作主语,表示“某人发生 …
What Happened To Mike Rowe On Duck Dynasty? The Truth Revealed
· simple past tense is used to talk about actions and events that both started and ended in the past. The helping verb have 2....
