Many animals use some kind of “language”. They use signals(信号)and the signals have meanings. For example, when a bee(蜜蜂) has found some food, it goes _____ home. It is _____ for a bee to tell ______ bees where the food is by speaking to _____, but it can do a little dancing. This tells the bees where the food is and _____ it is.

Some animals show how they feel by making sounds. It is not difficult to ____. If a dog is angry, it barks(吠). Birds make several different sounds and ____ has its own meaning. Sometimes we humans make sounds ____. We make sounds like“Oh!”or“Ouch!”to show how we feel about something or when we _____ something on our feet.

We humans have languages. We have words. These words have the meaning of things, actions(行动), feelings or ideas. We ____ give each other information. Writing down words, we can remember what has happened or send messages to people far away.