听下面一段材料，回答下列小题。 1. What's wrong with Marsa? [     ] A. He has had no sleep for days. B. His headache is getting worse. C. His hair is gone. 2. How many hours a day does Marsa usually work? [     ] A. 8 hours. B. about ten hours. C. less than ten hours. 3. What is the reason for marsa's trouble? [     ] A. Too much food. B. Too much work. C. Too much coffee. 4. What advise did the doctor give him? [     ] A. Eating more and work less. B. Have a rest for four weeks. C. Eat more vegetables and do some exercise.