happened and happeningwhat is happening是对的,那what did happen难到不是对的吗?都是怎么了?都有助动词,那后者为什么是错的?如过错了为什么不同?is 是助动词

What happened When,when and how -when and where____the accident?-last night beside the lakeAhas,happended Bhad,happened Cdid,happen Dwas,happened The earthquake happened and many people were _____(terrible) hurt. and what happened on this day that it is named? He looked outside and wanted to_____what happened just now. 初三英语与语文1.have been in/have been to/have gone to有什么区别2An accident ( )yesterday and I ( ) itA.happened to himself happened toB.happened himself happened to seec.happened himself happened seeD.happened to himself happened What______you , yesterday? I didn't feel well and went to the doctor.A.happened to B.happened with C.was happened What-------? I --------my key and can't open the door.A.happened;lostB.has happened;lostC.happens;have lostD.has happened;have lost选哪个?为什么? 2-16.Plase tell me what has happened ,when it happened ,how it happened and what has done about ithas done 错了 应该改为 为什么~ it should never ____:she went out and left the babyA have happened B happened C happen请问原因是? He got off and asked the woman what happened等于He got off---- -----the woman what happened --I haven't seen Mike for some time,what---to him?--He's got crazy and has ---hospitalA,should have happened,come inB,can have happened,ended inC,could have happened,come inD,must have happened,likely选哪个?为什么? the man stopped me and asked what had happened能去掉had吗变成这样：he man stopped me and asked what happened What has happened?What has happened?---I have lost my key and can't open the door.为什么不能用What happened?---I lost my key and i can't open the door.两者的区别是什么? there was an()happened between Tom and Joe last night-----argue 1.This was a true story and it happened __________ the morning of May 5. 求文档:There was an_____｛argue｝ happened between Tom and Jack last night She goes to the nearest police station and ____ what has happened