听材料,回答问题。 1. What's wrong with Jack? A. He has a headache. B. He has a sore throat. C. He has a stomachache. 2. How long has he been like this? A. For two hours. B. For two days. C. For only one hour. 3. What does the doctor ask Jack to do? A. To drin k more water. B. To eat more fruit. C. To have a good rest.