Not until the child fell asleep did the mother leave the room.哪一部分是从句,主句?

The mother didn't leave the room until the child fell asleep改写成用not until引导的句子 Not until the child fell asleep did the mother leave the room.哪一部分是从句,主句? 1.To have too much pressure is not good for a child .(改为同义句) ___not good for a child ___ ___too much pressure.2.____(compete) starts very young and continues until the kids get older. Not until the next morning ____. the teacher -----( not stop)-----(work)until midnight Not until the day before yesterday ---- raining. until...和not until... When he was a child,he left home.Until it became the home of old talent,although his accent has not changed,but his family did not know him.翻译翻译 not ...until not.until. 请问是it was not until 1990s还是It was not until the 1990s You are not the only child at home?这是什么意思 not till 和untill 区别.untill 是到 直到.的意思 那么not untill呢?Not until the child fell asleep did the mother leavethe room.母亲一直到孩子入睡后离开房间.这边为什么要使用not untill而不是untill Not until after the Olympics,the rates are too high. the opera is not over until the fat lady sings. The little child dare not(walk)__with his classmatesThe little child dare not(walk)__in the forest alone Not until the end of last year 和Until the end of last year 的区别 ()he was,he was not afraid at all.A.Child as B.A child as C.A child though D.The child as