Questions 11 to 18 are based on the conversation you have just heard.

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 be.

A．It has been the bestseller for weeks.
B．It advises people to change themselves.
C．It is being sold at a very, low price.
D．It distinguishes co-operators.