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A dog is a kind of animal. It’s one of the pet animals. Most of them are liked by people. Many people keep the dogs for pleasure. They give food to the dogs every day and build the houses for them. Dogs are good friends of people. They can help people in many ways. Some can look after the house. If you go out with a dog at night, you will feel less lonely.　So we should be kind to them and take good care of them.