11.   But the professor has tenure, which allows you to act the fool without being held responsible.

12.   But the professor has reservations about the technology and the way it could interfere with lifestyles.

13.   Department members say these advising complaints are common at Harvard, because so many professors have outside activities.

14.   Economics professors have a tough life.

15.   For purposes of defense, the professor has not only his own tribesmen but also his own gunmen.

16.   In addition to his research and teaching, professor Weisskopf had a distinguished career as an administrator.

17.   In addition, many computer science professors have classes with hundreds of students because of the popularity of the field.

18.   It also calls for improving computer networks and increasing the number of technicians, so that professors do not have to do basic laboratory chores by themselves.

19.   Many college professors have only high school degrees.

20.   Most speak it, too, but sometimes with gaps, just as their English-speaking professors have gaps in their conversational Spanish.