distinguish

你能区分西班牙语和葡萄牙语吗？

Can you ___distinguish Spanish from Portuguese?

在黑暗中，我无法分辨出任何东西。

I couldn't ___distinguish anything in the darkness.

一个人可以通过努力工作和奉献精神脱颖而出。

One can ___distinguish oneself through hard work and dedication.