A UFO landed near my house() i was sleeping last night

A:"A UFO landed while i was sleeping last night." B:"Were yo .I was sleeping last night when the UFO l_______. ____ UFO landed while I ____ last night. 改错 I finded a small snake near my house last night. ___I was geting my book___The car,I saw a UFO landed.A.while When the UFO(landed/was landing),the dog (slept/was sleeping she ask me--go to her house last night A.why was not I B.why I was taking a walk when the UFO landed.改成同义I ——when the UFO “I was walking down center street ,when a UFO landed .”怎么翻译 I was walking down the street when a UFO landed down. I was walking down the street when a UFO landed right in fro I was taking a shower in the bathroom when the UFO landed 的意