听下面一段材料,回答第1至3题。 1. What's wrong with Mr. Smith? A. He's got a cold. B. He's got a headache. C. He's got a fever. 2. Has he taken his temperature? A. Yes, he has. B. No, he hasn't. C. We don't know. 3. How often should he take the medicine? A. Once a day. B. Twice a day. C. Three times a day.