My homework was not finished until 12 0'clock.Andy,I hear you was chosen.两个句子为啥用was

My homework was not finished until 12 0'clock.Andy,I hear you was chosen.两个句子为啥用was My mother was cooking while I__________(do)my homework. i was doing my homework when my mom came My English teacher was very ____(satisfy) with my homework. his mother was .because he did not finish his homework It was not until I had finished all my homework that I went to bed last night.这里为什么要用had? I did not see the film last night.That was ____ I had to help my brother with his homework.请问这里要填什么 I did not my homework yesterday 哪里错了 I to bed until I finished my homework(not go) I to bed until I finished my homework(not go) My cousin usually()(not to)his homework before supper. I was doing my homework when he came in.(对I was doing my homework提问） 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 my homework while my mother (was cooking)为什么不填cooked Last Saturday I was busy _____ my homework and my mother was busy _____ the housewok. I was doing my homework while my father was reading newspapers为什么填while I didn't do my homework because I was ill._ _ _ do your homework? I lost my pen,Icould not do my homework.同义句怎么写I_______ ________ _______do my homework ________my pen.