47. Why did the author attend the comedy course?
A. He wanted to see how the theories worked in practice.
B. He discovered he had some natural ability in comedy.
C. He worried about how other performers would find him.
D. He got unpleasant experiences when performing a comedy.
48. Ryan required the people on the comedy course to______.
A. copy their favorite performance B. imagine other people’ s reactions
C. help themselves feel comfortable D. behave in a more playful manner
49. What is the purpose of the joke mentioned in Paragraph 4?
A. To discuss what humor brings about exactly.
B. To give an example of another kind of humor.
C. To prove the point about psychology of humor.
D. To show why some people are funnier than others.
50. What view does the author put forward in the end?
A. Visual humor is what appeals to people most.
B. What people find funny is often unpredictable.
C. Theories explaining humor tend to be mistaken.
D. Learning comic skills proves to be a difficult task.