1.I didn't go to bed until I _____ all my homework.A.had finished B.finishes C.has finished D.am fishing请写一下为什么,还有,请问一下start和begin的区别!

1.I didn't go to bed--[since,until]my mum came back last night. I didn’t go to bed until my mother（ ）home.Agot Barrived inCreachDgot to I didn't go to bed ) it was 12 o'clock last night i didnt go to bed until my father came back中until是什么词性 Did you go to bed late last night?Yes ,I did.I didn't go to bed (u )12o'clock I ______ go to bed until I ______ finished my work.A.don't; hadB.didn't; haveC.didn't; hadD.don't; have I didn’t go to bed until I finished ( ) my homework.A.to do B.doing C did D.do 改错1.He didn't go to the cinema yesterday.and I didn't go,too. I didn't go to bed until I finished my homework 同义句 I went to bed ___ finished my homework.I I didn't go to bed ______ I finished my math homework yesterday evening.A whenB as soon asC until -You lookso tired today.-Oh,I didn't go to bed _____ 2:00-You lookso tired today.-Oh,I woked _____ last night.I didn't go to bed _____ 2:00 i didn't go to bed until my homework()yesterday evening.i didn't go to bed until my homework()yesterday evening A finish B would finish C was finished D finished before能否用在一般过去式i didn't go to bed before 11 last night.i didn't go to bed before 11 last night.这个句子对吗?为什么?谁可以给我答案? I didn’t go to bed _ my mother came back home last night.是用till还是until I didn't go to bed until my mother came back写出它的同义句,词数9个 I didn't go to bed until ten o'clock改句改成强调句 和倒装句 . I didn't go to bed until i finished my homework改为同义句I went to bed____ _____ my homework. I didn't dare to go和I didn't dare go一样吗