when the UFO arrived, I was in the library.was in the library画横线部分提问___ ____ you when the UFO arrived?

david was in the barber`s when the ufo arrived 对划线部分提问 ___ ___david when the ufo arrived? what were you doing when the UFO arrived? unit 3 what were you doing when the ufo arrived? he were sleeping when the UFO arrived.为什么用were when the UFO arrived, I was in the library.was in the library画横线部分提问___ ____ you when the UFO arrived? david was in the barber's when the UFO arrived.对in the barber's提问 What were you doing when the UFO arrived?是个什么从句?谢谢 连词成句：UFO,the,when,where,you,were,arrived ?有大赏100 人教八下Unit 3 What were you doing when the UFO arrived?原文 初二英语Unlt3 What were you doing when the UFO arrived 1b的翻译 I was shapping when the UFO arrived(对I was shapping 提问) when the ufo arrived,i______ 1.am walking 2.was walking 3.walked 4.walking when the ufo arrived,i______ 1.am walking 2.was walking 3.walked 4.walking David was in the barber's chair when the UFO arrived 对in the barber's chair 提问 用括号里的时间状语改写下列句子 what were you doing when the UFO arrived?(at the moment) 直接引语变间接引语She said:I was shopping when the UFO arrived.怎么变间接引语是变成She said that she was shopping when the UFO had arrived.还是She said that she was shopping when the UFO arrived.为什么? 英语翻译翻译1.What wrer you doing when the UFO arrived?2.The boy was walking down the streetwhen the UFO landed.3.While the boy was walking down the street,the UFO landed.用括号内所给单词的适当形式填空.1.When the bus arrived,he__ When the UFO(landed/was landing),the dog (slept/was sleeping)另有一题：When the reporter(arrived/was arriving),everybody(shouted/was shouting)这两题标准答案：第一题landed,was sleeping；第二题arrived,shouted.但我不明白为什