The American need to own things is partly the result of mass advertising,【C1】______urges c

onsumers to discard last year' s car or clothing in【C2】______of the current models with the latest designs. Some people are【C3】______that they must"【C4】______the Jones," that they must have whatever their neighbors have. The old car or the old stereo set【C5】______work perfectly, but a newer and bigger one might【C6】______the family' s esteem in the community. Possessions become【C7】______of financial success; they elevate【C8】______social status.

Advertisers also【C9】______to the American desire to look youthful and be physically attractive. Commercials attempt to sell many products—shampoo, toothpaste, deodorant and soap, for example—【C10】______implying that their particular【C11】______will help its user be more appealing.

But Americans also make many【C12】______for practical reasons. They buy【C13】______devices to do routine household chores more quickly and easily. Every housewife wants a vacuum cleaner, an electric mixer, a steam iron, an automatic clothes washer and dryer, and a dishwasher.【C14】______every home-owning husband would like a power lawn mower, as now -blower, and an electric drill.

Americans also buy things【C15】______they like to do things. Equipment【C16】______hobbies and books about "do-it-yourself' projects are very popular. Americans want to know how to cook with a "continental" flair while refinishing the bedroom furniture and【C17】______a million dollars in the stock market. The American【C18】______of activity is part of a generally【C19】______outlook on life, a belief that the value of knowledge is【C20】______to its usefulness.

【C1】

A．what

B．it

C．that

D．which