Teaching English as a foreign language can b...

Câu hỏi: Teaching English as a foreign language can be a great way to travel the world and earn money at the same time. However, some graduates actually like the idea of (1) ______ a career in teaching English long-term, and there are numerous courses at various (2) _______ of teaching, from the fast-track TEFL to a diploma or masters.

A.  levels

B.  groups

C.  categories

D.  classes