英语-什么时候用happened,什么时候用happening

英语-什么时候用happened,什么时候用happening It happened do 和to do 有什么区别?什么时候有to do什么时候用do Life is not easy,so I'd like to say When anything ______ (happen) ,believe in youself!答案是happens ,为什么呢?这和What's happened? 又有什么区别呢?(即什么时候用happens,什么时候用happened呢?) 【急求】在什么情况下疑问句中要用助动词do?什么时候要用do/did/dose?什么时候不用?就像what did you do? 和 what happened? 为什么第二句话不用what did happened? 英语中 what happened?和 what happens?有什么区别 分别怎么用 昨天发生什么事情了?用英语怎么说.What happened yesterday Were the Martians friendly?What happened at last?什么意思,怎么解答,用英语 he walk over to see what happened...什么时候用what is happen 什么时候用what happen 英语提问句,什么情况下用陈述语序?Strange things had happened during the night.Ask him whatWhat strange things had happened during the night?为什么不是 What had strange things happened during the night? 英语的问句,什么情况下用陈述语序?Strange things had happened during the night.Ask him whatWhat strange things had happened during the night?为什么不是 What had strange things happened during the night? It (so) happened that.什么时候加so?It (so) happened that.这个句型什么时候加so,什么时候不加so?另外：There happened to be nobody in the house on fire.中为什么开头用There 而不是It? 英语中,什么时候用现在完成时,什么时候用过去时?为什么? 英语中,什么时候用过去时,什么时候用过去完成式? 英语的现在完成时与过去时有什么区别?如何区分?什么时候用现在完成时,什么时候用过去时? 英语解释句子:What happened to you?用英语回答 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 happened 、 什么意思 英语中什么词有时态变化?什么时候语态要变化?就是什么时候的什么词用什么时.求不要复制。简单明白就好