阅读下面短文，用括号内所给动词的适当形式填空(必要时可加情态动词或助动词)。
Americans
enjoy many activities. When they are at home, they enjoy reading, watching TV,
drawing, {#blank#}1{#/blank#} (play) computer games and so on. The most popular activity
is done outside. A new study {#blank#}2{#/blank#} (say). more than 40% of the adult
Americans are gardeners.
According
to the study, during the growing season a gardener usually spends 3 or 4 hours
a week {#blank#}3{#/blank#} (work) in his or her garden: digging, planting, cutting
and watering. They also spend money on their gardens. Each year American
gardeners spend about 25 billion dollars{#blank#}4{#/blank#} (buy) seeds (种子), plants and
plant food. Plant food can make their plants {#blank#}5{#/blank#} (grow) better. They
also buy garden tools and even special clothes for working in the garden.
Why
do more and more Americans {#blank#}6{#/blank#} (like) gardening? Most people do it
for fun. To some people, gardening makes their home more beautiful and makes them
feel closer to nature. Gardening is also a good way to get exercise and working
outside in the fresh air can help them {#blank#}7{#/blank#} (relax).
