（while the boy was walking down the street）,the UFO landed 对括号里的内容提问____ ____the UFO land?

While the boy was walking down the street,the UFO landed,对While the boy was walking down the street提问 while the boy was walking down the street,the UFO landed同义句4种 while the boy was walking down the street,the UFO landed ( ) the boy was walking down the street,the UFO lended. while还是when The boy's book d_____ on the ground while he was running.填空注意时态 the was i while was cooking in garden boy in the kitchen planying the组句、快 when the boy was the boy was walking down the street when the UFO landed改为一般疑问句,并回答 while the boy was walthe boy was walking down the street when the UFO landed改为一般疑问句,并回答while the boy was walking down the down the street ,the 同义句转换——英语八下While the alien was buying a souvenir,the girl called the police.While the alien was visiting the museum,the boy called the TV station.把句中的while改成when 1.the boy was walking down the streetwhen the UFO landed.2.while the boy was walking down the street,the UFO landed.3.the girl was shopping when the alien got out.4.while the girl was shopping,the alien got out.5.i am mad at marcia.6.she said she was i was doing my homework when a boy rushed into the classroom为什么不用WHILE,而一定要用WHEN 英语翻译The boy was walking down the street when the UFO landed.While the boy was walking down the street,the UFO landed.The girl was shopping when the alien got out.While the girl was shopping,the alien got out. 赶着做作业,混经验的别来~The boy was walking down the street when the UFO landed.While the boy was walking down the street,the UFO landed.The girl was shopping when the alien got out.While the girl was shopping,the alien got out.翻译出 关于英语主句从句的问题While the boy was walking down the street,the UFO landed.The boy was walking down the street when the UFO landed.这两句中,哪些是主句,哪些是从句,说明理由 The boy was monster The boy was a monster The boy was saved because the doctor arrived there _____ it was too late.A. before B. since C. or D. while the boy was in blue 英语翻译while the boy was walking down the down the street the UFO landedthe girl was shopping when the alien got outwhile the girl was shopping the alien got out