选词填空：用方框中单词填入空中，不需要变换形式。（每小题1分，共15分）

popular  fun    usually    their   like   buying   grow   and   clothes     playing  of    nature     planting       relax     beautiful

Americans enjoy many activities. When they are at home, they enjoy reading, watching TV, drawing, __computer games and so on. The most _____ activity is done outside. A new study says more than 40%___ the adult（成年的）Americans are gardeners.
According to the study, during the growing season, a gardener ______ spends 3or 4 hours a week working in his or her garden: digging, ___, cutting and watering. They also spend money on____ gardens. Each year American gardeners spend about 25 billion dollars ______ seeds（种子），plants and plant food. Plant food can make their plants ____ better. They also buy garden tools and even special____ for working in the garden.
Why do more and more Americans ____ gardening? Most people do it for _____. To some people, gardening makes their home more _____ and makes them feel closer to_____. Gardening is also a good way to get exercise _____ working outside in the fresh air can help them ___.