翻译句子：1.昨天我直到写完作业才看电视.I

1.昨天我直到写完作业才看电视.I didnt wathc TV until I finished my homework yesterday.2.半小时以后,婴儿醒了,开始哭了.Half an hour later the baby woke up and began to cry.3.去年她在北京没有待很长时间.She hasnt stayed in Beijing for a long time last year.