REGRET

我本可以早点起床赶上火车的。

I ___could've woken up earlier to catch the train.

你本可以告诉我你会迟到的。

You ___could've told me you would be late.

我本可以在祖父母搬走前多花些时间陪他们的。

I ___could ___have spent more time with my grandparents before they moved away.

我们本可以走另一条路，完全避开那段堵车的。

We ___could ___have taken a different route and avoided all that traffic.

他本可以开口求助，而不是独自苦干好几个小时。

He ___could ___have asked for help instead of struggling alone for hours.