英语中what's happend what's happing 这两个单词有什么区别么

英语中what's happend what's happing 这两个单词有什么区别么 what's wrong?what's up?what's happend?what's the matter?有什么区 what‘s happend 还是 what’s the happend what's more 和 what's worse 有什么区别? 在英语里,"What's up?"和"What's the matter?"有什么区别? he asked ( ) A what was happend to you B what is happing to what's up 和 what happen这两个都是发生什么事情的意思吗 有什么区别 What happened和what's happened有什么区别呀? What time和what's the time有什么区别? what happend around 1920s at home and abroad? 英语句子中的it's或者what's应该怎样发音,有发音规则吗?像这种把两个单词合在一起的现象在英语中称做什么?什么情况 what happend?