单项选择题
Passage 2 Questions 13 to 15 are based on the passage you have just beard.
A.Germany. B.Austria. C.Vienna D.Switzerland.
A.In a railroad station. B.In a bus station. C.In a restaurant. D.In a hotel.
A.Hold on a little. B.Become a doctor. C.Find a better dentist. D.Get medical advice.