你能10分钟后回电话吗？

Can you ___call ___back in 10 minutes?

如果你有空，请给我回个电话。

If you're free, please ___call me ___back.

我试着打了电话但没人接。我明天会再打过来。

I tried to call but got no answer. I'll ___call ___back tomorrow.