Absolutely!
As a teacher of English as a foreign language, you only need to be able to speak one language: English.
It doesn’t matter if your students are Turkish or Spanish or Thai. It doesn’t matter if you are teaching English in South Africa or China or Mexico. And it certainly doesn’t matter if your students are Advanced learners or Intermediate learners or Beginner learners. What matters is that you speak English. This is the basis of immersion learning, and this is the foundation of teaching English as a Foreign Language.
Read more: How Can I Teach English Abroad without Speaking the Local Language?