i was sleeping late ___when _someone knocked on the door 为什么填when 而部填while 求详解

He was sleeping late when it arrived i was sleeping late ___when _someone knocked on the door 为什么填when 而部填while 求详解 I was sleeping.对划线部分提问 划线：sleeping I was being late.时态 I was cooking while my sister was sleeping i heard a l() voice when i was sleeping the sleeping late the boy car arrived when was 连词成句 英语翻译i got up late,()()(),i was late Yesterday I s late,so I was late for school I was late this morning ___ I got up late. When someone k___ the door,I was sleeping. .I was sleeping last night when the UFO l_______. I (tu )the TV off because the baby was sleeping sleeping late is h___to your I like sleeping late __________ every Sunday morning.A.in B.on C.at D./ I was sleeping when he called me.(对划线部分提问）划线部分是was sleeping. I was late for school again because I got up late同义句I was late for school again______________________________ He was sleeping late his mother called him this moring.A.while B.when C.then D.and