Mr  Zhang, Mr  Wang, Mr  Li and Mr  Zhao are driver, professor, doctor and worker  It is known that: (1) Mr  Zhang is taller than the professor; (2) Mr  Li is shorter than Mr  Wang; (3) The worker is taller than the driver; (4) The doctor is shorter than the professor; (5) The worker is either Mr  Zhao or Mr
Li
All the four people's occupations can be determined.