What happened When,when and how

What happened When,when and how when she r____ what happened,she laughed. What happened when English settlers moved west? there are no w（） of finding uot what happened What happened when Sam wanted to go home? when he read the report,what happened to Mike what happened when you were late for an event同义句转换what happened when you ------------to an event----------? general statement of what happened when请问这句短语如何翻译?尤其是what happened when这一部分怎么讲? 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~ What had happened?What had happened?What had happened? 是What happened 还是what’s happened what happened=what's happened吗? what happened to 和what happened 求英语作文what would you do when an earthquake happened when the earthquake happened,what were gou doing?那位帮我说下中文 she asks,what was he doing when it happened she asks------------------------------------填-- _____he came back home that we knew what had happened.为什么选It was when. What were you doing when the fire happened?我要的是回答，请简介一点