为什么my brother didn't go to bed until my father came back las

为什么my brother didn't go to bed until my father came back las I didn't go to bed until my father came back.came back可以用had My brother didn't go to bed until his mother came back.同意句My i didn"t go to bed until my father came back中until是什么词性 i didn't go to bed until my father came back..对划线部分提问 划线部分是 1.I didn't go to bed--[since,until]my mum came back last nig I didn't go to bed until my mother came back I didn't go to bed until he came back. I didn't wait until my father came back.(改错) We didn't say anything until my father came back. my brother won't go to bed until mymother comes back.won't为什 I didn't go to bed last night _______ my parents came back.A