A: Good afternoon, Doctor Huang. B: Good afternoon, young man. 56 A: I have a bad cold. I cough now and then. B: 57 A: For two days. And I’m feeling terrible now. B: 58 Oh, you have a fever, too. A: Is it serious? B: 59 You just need some medicine. A: How often should I take the medicine? B: Three times a day. 60 A: Thanks a lot. Bye!