For most of human history rich people had the most leisure. On the other hand, the poor ha

ve typically worked persistently. Hans-Joachim Voth, an economic historian, says that in 19th century you could tell how poor somebody was by how【C1】______they worked. Today things are【C2】______. Overall working hours have【C3】______over the past century. But the rich have begun to work longer hours than the poor. There are a number of【C4】______One is that higher wages make leisure more expensive: if people take time【C5】______they give up more money. Since the 1980s the【C6】______of those at the top have risen strongly, while those below the median have stood still or fallen. Thus rising【C7】______encourages the rich to work more and the poor to work less. The【C8】______of work and leisure in the rich world has also changed. Back in 1899 Thorstein Veblen offered his【C9】______on things. He argued that leisure was a "badge of honor". Rich people could get others to do the【C10】______, repetitive work. Yet Veblens leisure class was not【C11】______. Rather they engaged in "exploit":【C12】______and creative activities such as writing, charity and【C13】______. Veblens theory needs【C14】______. Work in advanced economies has become more【C15】______and intellectual. There are fewer really dull jobs, like lift-operating, and more【C16】______ones, like fashion design. That means more people than ever can enjoy "exploit" at the【C17】______. Work has come to offer the sort of pleasures that rich people used to【C18】______in their leisure time. On the other hand, leisure is【C19】______a sign of social power. Instead it【C20】______uselessness and unemployment.

【C1】

A．long

B．much

C．well

D．often