19-21 Now you'll hear the two long conversations. Conversation One 19. A. She feels embarrassed when speaking in public. B. Her presentation receives a poor grade. C. She has not completed her assignment. D. She is unable to attend her psychology class. 20. A. Leave as quickly as possible. B. Look at the exit sign. C. Don't stand up. D. Ask her professor not to call her. 21. A. They blush more than women do. B. They perform uncomfortably in front of adults. C. They can't suffer psychological stress. D. They blush less frequently than adults do.