Choose the correct words.

A dog is a ... animal. It can ... you by your voice or by your appearance. A dog is a good companion and a
...
friend. It ... your life. You can play with it. A dog can hunt if you train it. Dogs belong to the meat-eating ... family. They belong to the same family as wolves and foxes. Dogs were ... thousands of years ago, but people could tame them. Nowadays dogs can be useful for people.