我们及时到达，赶上了火车。

We arrived ___in ___time to catch the train.

如果我没有及时回来，你可以在我的桌子上留个便条。

If I don't come back ___in ___time, you can put a note on my desk.

他及时完成了作业，赶上了截止日期。

He finished his homework ___in ___time for the deadline.