what happened while you were _the telephone?a.at b.on c.in d.over

What happened while Linda was on the telephone什么意思 What happened while Linda was on the telephone What ----(happen)while you were doing housework last night?happened和was happening哪一个更好? what happened while you were _the telephone?a.at b.on c.in d.over what,the,reading,man,happened,while,was,at,home连词成句 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 What happened while Linda was on the phone?为什么不是What did happen while Linda was on thephone请详解此类情况, I still don't know what ( ) while I was away from home.A.had happened B.happened选哪个?另一个为什么不选? The woman still doesn't know what __in her home while she was away.a/ happens b/happened c/ will happen d /was happened分析 、谢 what happened at last? what happened on What Happened to Us what happened then Dear,what happened to what happened to she