Quiz - Lesson 39: It's Unbelievable!
See how well you understand the lesson by taking this short quiz. Play the video and choose the best answer.
![](https://gdb.voanews.com/daeeeddb-4057-434c-b247-bcf240a1dfe4_w250_r1_s.jpg)
See how well you understand the lesson by taking this short quiz. Play the video and choose the best answer.