沿着这条路走，直到你看到邮局。

Walk along this road ___until you see the post office.

我们一直走，直到到达山顶。

We walked ___until we got to the top of the hill.

坐火车直到最后一站，然后换乘公交车。

Take the train ___until the last station, then change to the bus.