1 I enjoy ____ bottled water because it tastes purer than tap water.
2 I worry about ____ ill from tap water.
3 ____ money for something you can get for free is crazy.
4 I avoid ____ bottled water because the bottles cause pollution.
5 When I'm really thirsty, I don't think about ___ the environment.
6 ____ money on bottled water is wrong when many people don't have clean water.