Is this the bus to the library?

这是去图书馆的公交车吗？

Does this bus go to ..Street?

这辆巴士途径。。街吗

Do you know how often the No.2 runs?

您知道2路车多久来一趟吗？

How much is the fare to the library?

到图书馆要多少钱车费？

Is this seat taken?

这个位子有人坐吗？

How many stops are there before I get there?

到那儿要坐多少站？

Which stop are we at?

我们到哪站了

Please let me know when we get to..Street.

到了。。站了请告诉我一声。

Where do I change buses?

我在哪儿换车？