Animals are our_friends_____.We can find different kinds of___animals___on the earth.
____some__animals are living in big forests.And some animals are living__with___man.
Animals are very important（重要）to man.For example,____people___can train（训
练）the elephants to___do___some heavy work.And they can also train the dogs
to look after the___house____.A watchdog____is__very clever,it can____help__people
in danger.
Children like ___dogs___very much.