阅读下面短文，在空白处填入一个适当的词或填入括号中所给单词的正确形式。

    As we all know, one of Thailand's symbols （be） the elephant. It is also a symbol good luck.

    Elephants are smart animals. They can play soccer or music. They can also draw very （good）. People say that" an elephant never forgets". Elephants can walk a long time and never get lost. They can also remember places water and food. This （help） them to live.

    elephants are in great danger. People cut down many trees so elephants are （lose） their homes now. Today there are only about 3, 000 elephants. We must save the trees and not buy things （make） of ivory.

    Elephants are our good friends. I think people all over the world must work together to save （they）!