A．She worked in a supermarket for tuition.
B．She helped someone to learn to read.
C．She gave single mothers the help that they needed.
D．She went to a training program to help a volunteer.

A．The shorter hours they work, the higher pay they can enjoy.
B．The more they work, the less leisure they can enjoy.
C．The shorter hours they work, the less pay they can get.
D．The greater pressure they bear, the unhappier they can he.