while mother was preparing linch ,janet ____(set) the table答案是set 或者was setting,为什么,set 是非延续性动词吧,为什么还能用was setting

I washed my hands and ______ supper while Mother was ______ supper in the kitchen.A.prepared for,I washed my hands and ______ supper while Mother was ______ supper in the kitchen.A.prepared for,preparing B.prepare,preparedC.prepare for,prepared D.pre My mother was cooking while I__________(do)my homework. While she ---- newspapers,her mother was watching TV 上课铃响了 的英文怎么写还有 my father was reading while my mother was cooking 等于 my mother was cooking while my father was reading i was doing my homework while my mother (was cooking)为什么不填cooked While I （was watching） TV,my mother （was reading） books 这句话对吗? 英语----连词成句 while,Jim,his mother,was,watching Tv,cooking,was my father was playing football ------my mother was going shopping中考题 while when however 老师 还有Tom was doing shopping when her mother called her up.可以while her mother was calling.. My father was reading newspapers__my mother was cooking 填when还是while答案上选while,但我觉得应选when,原因是我认为when>while 请问一个when和while的问题 while my mother was coming back,I did my homework不行么? 英语翻译while mother was prepare lunch ,janet set the table.人名也帮我翻译下 My brother was watching TV when my mother came back（用while改写） My mother was cooking when my father came back 用While改写 While her father was watching TV,her mother ____(read)a newpaper. my brother was singing while my mother was cooking= my brother was singing when my mother was cooking= while my mother was cooking,my brother was singing = when my mother was cooking,my brother was singing 语法都对吧 My mother _____breakfast while I____my face this morning.A.cooked;was washingB.was cooking;was washingC.was cooking;washedD.would cook;was washing 高一英语改错题：改错：Father was sitting on the sofa at ease while mother was preparing for lunch.