past

我经常回想过去的美好时光。

I often think about the ___past.

过去的几年里，我学到了很多东西。

In the ___past few years, I have learned a lot.

我上周的生日派对很棒。

My birthday party last week was in the ___past.

火车在三点十五分经过。

The train goes at a quarter ___past three.