when.did.the.ufo.（ ）填什么arrive.in ／come.to ／land／get.to

when.did.the.ufo.（ ）填什么arrive.in ／come.to ／land／get.to Did you see the UFO?When it ____(landed,was landing),I was in the barber' shop!填那个, 英语翻译the boy was walking the street when the UFO landed(对was walking the street 提问）___ ___ the boy ___ when the UFO landed When did the accident ( ) ( ) (发生）?填空 We ------ (sleep)when the UFO -----(arrive) They were walking along the road when the UFO landed.(改为一般疑问句） when did the accident happen when did the dinosaurs live? When did the children come? what was the girl doing when the ufo took on? When the boy (shop),he saw the UFO (take off) When did the car accident happen?(同义句） what did you do when the lights went out?） When did the film begin?(用9：:45回答） When did they（ start） the factory?同义句 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?