While I was doing my homework,the light went out.用when改同义句

I singing someone doing heard my honework while was I I was doing my homework while my father was reading newspapers为什么填while i was doing my homework while my mother (was cooking)为什么不填cooked one saturday ,i was doing my homework whileone saturday ,i was doing my homework while it、、、、、 这篇改错答案 I was doing some shopping ____ I saw my old friends yesterday afternoon (when/while/as) while I was doing my homework ,I heard a Strong noise （同义句转换） While I was doing my homework,the light went out.用when改同义句 I was doing my homework while my brother was playing piano in his room.翻译成汉语 I was doing my homework while my brother was playing games的game为什么要加s Don't make a noise while I ( )my homework.A did B do C am doing D was doing Don't make a noise while I ( )my homework. A did B do C am doing D was doing 1 while I was doing可省略I was吗 someone knocked( )the door while i( )my houseworka.at,were doingb.at,was doingc.on,was doingd.on,were doing My brother was reading while I did my homework.while后面不是接延续性动词吗,为何用did my homework?My brother____ while I ____.A.reads;was doing my homework B.read;did my homeworkC.was reading;was doing my homework D.was reading;did my ho i was doing my homework while my mother was cooking不是一个句子不能有两个动词吗?为什么两个was会同时出现? while my mother ________(cook).I am doing my homework. i was doing my homework when a boy rushed into the classroom为什么不用WHILE,而一定要用WHEN The phone rang （ ）I was doing my homework?A when B while 为什么选择B 而不是A