i was doing my homework while my mother (was cooking)为什么不填co

i was doing my homework while my mother (was cooking)为什么不填co i was doing my homework while my mother was cooking不是一个句子不能有 My mother was cooking while I__________(do)my homework. I was doing my homework,my mother was cooking in the kitchen while my mother was cooking ,i ___ TV. While my mother was cooking,I was sleeping 这句话中While my moth one saturday ,i was doing my homework while I was cooking when uncle wang visited my home 为什么连词不能用while? I was doing my homework while my brother was playing piano i The phone rang （ ）I was doing my homework?A when B while 为什么 I was doing my homework while my father was reading newspape I was doing my homework while my brother was playing games的g