A．Someone who always talks about himself.
B．The most violent type of co-workers.     
C．Someone who stabs your back.
D．The most common annoying type of people.

A．His schedule of courses is too heavy. 
B．It's not what he expected.          
C．He doesn't like the professor.
D．He can't pay for so many credit hours.

A．She can help the man drop the course.
B．She thinks heavy course loads are manageable.
C．She is familiar with the kind of problem the man has.
D．She doesn't think the man should withdraw from the course.