Duolingo English Test, a computer-adaptive language ... “Although I've only taken a TOEFL practice test rather than an official one, I found that the DET was less stressful and time-consuming ...
Most of Duolingo’s A.I. costs are tied to an OpenAI -powered video call feature introduced last year, CEO Luis von Ahn told ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback