I won’t go to bed until I finish my homework.我做完作业才去睡觉.把他改成I am going to bed until I finish my homework.

I won’t go to bed until I finish my homework.我做完作业才去睡觉.把他改成I am going to bed until I finish my homework.
I won’t go to bed until I finish my homework.
我做完作业才去睡觉.
把他改成
I am going to bed until I finish my homework.

I won’t go to bed until I finish my homework.我做完作业才去睡觉.把他改成I am going to bed until I finish my homework.
不行
I am not going to bed until I finish my homework.

不行,因为这样翻译就成了:"我要去睡觉直到我完成了作业."与本意相反!

No. "Untill" is suposed to be used in a negative sentence. But you may say "I am going to bed till I finish my homework."