Home
New TOEFL IBT Pratice Test #007

New TOEFL IBT Pratice Test #007

Listening | Question 16 of 18

Listen to an Academic Talk

In the professor's example, what is the opportunity cost of choosing to study?
A) The money spent on textbooks
B) The value of not attending a movie
C) The chance of getting a better grade
D) The time it takes to get to the library