英语短文填空find clever kind teach friend most live because 的正确形式填空

英语短文填空find clever kind teach friend most live because 的正确形式填空
Animals are our friends we can find different 什么（1）of animals.some animals （2) in
the woods .Some animals live with people and they are (3) to people .Sometimes people teach animals to do some things For example people (4） elephants to do some heavy work and they also teach dogs （5） their houses A watchdog is very （6） it can help people in danger Children like animals very much and （7） children like to go to the zoo （8）they can see many animals there The zoo is a good place for children