A．Working students in general suffer a drop in grades.
B．Working students are better able to cope with difficulties in life.
C．Working students in general have their grades improved.
D．Working students have a better chance of finding a job after graduation.

A．The violin was too heavy for her.
B．She was too young to play the violin.
C．The violin was too expensive.
D．Her mother wanted her to play the piano.