what is happening?的happening是什么词性我不明白是动词的ING形式,还是名词的happening.谁可以帮我讲一下

what is happening 歌词 what is happening是什么意思?rt what is happening on venus what is happening? she asked.为什么是is happening. what happens what was happened what happens what is happening的区别和用法? what is happening now is different翻译 what is happening?的happening是什么词性我不明白是动词的ING形式,还是名词的happening.谁可以帮我讲一下 happening what now is连词成句 What is happening to the balloons? happening what there is 连词成句 用英语解释一下what unusual happening is? What Is Happening (Alphabeat Vs Ultrabeat) 歌词 what is happening now in canada What's happening now tom is singing happening,guess,is,what.连词组句 what is striking about what is happening is ... what is it you would like to happen that isn t happening?的句子怎么理解 what was happening?happening词性