last用什么时态 - at

常和一般过去时和现在完成时连用，中文意思是最终，最后。

例如， old man has at last wiped off all his debts（现在完成时）。

At last the emigrants got to their new home（一般过去时）。

We were homeward bound at last.

我们终于要回家了。

At last he had his own wheels.