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More and more people like bicycling and it is no    61   . It is good for the environment. Bikes can take you almost anywhere, and there is no oil    62   !

Comparing with stopping and getting out of your car, stopping and getting off a bike is much   63   . You can bike to work and benefit(受益)   64    the enjoyable exercise without   65      the environment.

Folding(折叠)bikes work well for the man who    66    the train. Just fold the bike and take it with you. You can also take a common bike with you when you fly. But be sure to look for information    67   getting on airline websites. Not all airlines are bicycle-friendly to travelers.

Health Benefits of    68   :

It helps to prevent heart diseases. A 15-minutes bike ride to and from work three times a week burns    69    five kilos of fat in a year.

Bicycling can    70   your mood(心情).

Exercise like bicycling has been shown to make people feel better, more relaxed and self-confident.

61. __surprise__

62. ___ cost__ 

63.  easier __

64. __ from _  

65. _polluting__

66.   rides   

67. _  by    _

68. _bicycling__

69. ___off___  

70._ improve__

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