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Many Americans are trying to lose weight．Some eat less rood and hardly have any fats or sweets．Others do running,  1  with machines, take medicine, or even have operations．So you can see losing weight is  2  work, and it also costs a lot of money．

But  3  do so many people in the US want to lose weight? Because they worry about their 4 ．For many people, looking nice means being thin．Other people worry about their health as many  5  say overweight is not good．

Most people want to find a faster and easier way to  6  fat, and books of this kind are very popular．These books  7  people how to lose weight．Each year a lot of new books like these are written．Each one says it can  8  help people take fat away．

Losing weight can be  9 ．Some overweight people go to health centers, like La Costa in California．Men and women  10  several hundred dollars a day at these health centers．So in the United States, losing weight may mean losing money, too．

1．A．work                      B．run                      C．exercise                       D．experience

2．A．easy                           B．hard                     C．useful                   D．helpless

3．A．why                           B．how                 C．when                    D．where

4．A．money                    B．health                  C．looks                     D．bodies

5．A．officials                  B．parents                 C．teachers                       D．doctors

6．A．fix up                     B．put on                  C．take off                  D．stay away

7．A．make                      B．ask                      C．lead                      D．tell

8．A．never                      B．hardly                   C．just                       D．easily

9．A．cheap                     B．expensive             C．important              D．necessary

10．A．pay                       B．lose                       C．make                    D．waste