When we take a walk
________(围绕着)
Washington Square Park, I see a lot of people walking with dogs. It is still ________(真的) that a dog is the most useful
and faithful animal in the world, but people have __________(改变) the reasons why they keep a dog.
Of course, they keep dogs in order to keep ________(安全的). But the most important reason
is that they can have friends, because the city can be a ________(孤独的) place. For child, a dog is his
best friend when he has no friends to play with. For young couples, a dog is
their child when they have no children. For old couples, a dog is also their
child when their real children have _________(成长) up. Now can you see the reason why people keep dogs?