1.我将等你等到12点.
I __shall wait for__you__until_12 o''clock.
2.昨天他做作业做到晚上10点.
He _kept on doing his_homework _until__10 o'clock last night.
3.一直走到路的尽头.
_Walk straight on until__ you reach the end.
4.他直到12点才睡觉.
He _didn't go_ to bed _until_12 o'clock.
5.吃了药你才会觉得好点.
You _won't feel_- better _until you take the medicine.