TOEFL Speaking practice questions in the real exam format and timing.
Using the example from the lecture, explain the concept of Free Rider Problem.
Dùng 'In economics, a free rider is...' mở đầu, rồi chuyển sang ví dụ bằng 'The professor illustrates...'.
Record 90 seconds. You get four criteria, the exact words that slipped, and your own sentence rewritten two levels up.