Was the ability to speak a local language a requirement to sit in the exit row?

I never select exit row on an airline where I know or suspect English won't be widely spoken. Although it's the language of international aviation, I just assume that FAs may only know it minimally and would be more effective speaking their native language in an emergency (to another native operating the exit door, if necessary).

Plus I always assume a country could require local language fluency to sit in the exit row on their domestic flights.