1．Kangaroos are ______ (play) and chimpanzees are _____ (noise).
2. I was ____ (surprise) to find hardly anyone in the zoo.
3. Visiting zoos are like ____ (live) textbooks for young people.
4、He ____ (use) to be ____ (call) “Little Tiger”.
5、Liu Xiang’s success is an ____（inspire）to us all
