根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。
More and more people like bicycling. It’s fun, _____ , and good for the environment .Bikes can take you almost anywhere !Get on a bicycle and ride! You may _
___ something new all around you . Parking a bike is _
____ than parking your car. You can bike to work and benefit from the enjoyable exercise without __
____ the environment. You don’t even have to___
___ all the way.