听力原文：M: Hey, Amy! How's your weekend? F: It's terrific! I've been to the theme park on Knotts Berry Farm. M: Really? I've been to there once, but I felt too scared to ride on anything. F: You should have tried at least once. I think Supreme Scream tower was the most exciting one. It hoists riders 104 meters upwards and then plummets them back to earth in just three seconds at a speed topping 100 kilometers an hour. M: Didn't you feel afraid? F: When I was buckling myself into my seat at the start, the ride didn't seem so frightening. But once you were hoisted steadily skywards and were brought to a halt at the peak of the ride, you definitely would feel upset. M: And then? What happened next? F: Although the wait was only about 10 seconds it seemed an eternity since you know the only way out of this situation is straight down, and in a hurry. But I must say the view is superb from up there some people said it is the best in Orange County. But you won't have time for scenic snapshot. Why didn't the boy ride on anything in the theme park mentioned in the beginning of the conversation?