Rose is an American school girl. She is now in Beijing with her parents. It's Sunday morning. Rose gets up early in the morning. After breakfast her parents take her to the zoo. They go to see the pandas and other animals. The pandas live only in China. There are not any pandas in America. So they like the pandas best. Outside the zoo gate there is a picture. It's a picture of a panda with "Welcome". In the zoo, Rose sees not only pandas but also many other animals. A panda is round and fat. It looks like a ball. It always moves slowly like a ball rolling  . There are also elephants. The elephant is the biggest animal on land. There are many monkeys on the hill. Some of them are sitting in the trees. Some are picking nuts. And the others are running or climbing up the trees. Rose and her parents have a good time in the zoo. Which is the biggest animal on land?
The panda. The elephant. The tiger. The monkey.