david was in the barber's when the UFO arrived.对in the barber's提问

david was in the classroom改为疑问句 David was in the police station yesterday morning.(划线提问) David was in the police station yesterday morning.(划线提问) David was in the classroom.(改为一般疑问句） David and his wife Betty had a small bar near a station.The bar often kept open till after midnight ,because people came to drink there while they were waiting for trains.At three o’clock one morning,one old man was still sitting at a table in the david was in the barber's when the UFO arrived.对in the barber's提问 an old Irishman was watching them on Tv in the bar of a hotel如何翻译? david was born in the coldest moth of a year互相翻译 It happened that David was in the computer room at that time.(保持原句意思） David ___ ___be in the computer room at that time David was in the barber's chair when the UFO arrived 对in the barber's chair 提问 david was in the barber`s when the ufo arrived 对划线部分提问 ___ ___david when the ufo arrived? In our group,David was the first one()the homework.A finish B to finish C finishing请说明原因 David is student in the school.翻译 David j____the highest in the high jump. David was so careless that he didn't find the mistakes in his test paper.(改为简单句） 英语翻译Stir bar sorptive extraction (SBSE) in combination with thermal desorption-gas chromatography-mass spectrometry (TD-GC-MS) was applied for the determination of 9 UV filters in water samples.The stir bar coated with polydimethylsiloxane (P David was so careless that he didn't find the mistakes in his test paper.David was so careless that he didn't find the mistakes in his test paper.（改为简单句）David was （ ） careless （ ） find the mistakes in his test paper.Tom is so yo 改病句,Rose was at home at seven o'clock last night Where were you at same time?I was in the coffee bar with my mother