In our city,there is a big zoo. There are a lot of animals in it. Mona is an Australian koala. She is seven years old. She is very cute. She likes sleeping during the day. But at night she gets up and eats leaves. Mona doesn't drink water for months. But she is healthy,because she can get water from the leaves. Here is a big house. A lion lives in it. His name is Gerry. He is ugly. He is from Africa. Meat is his favorite food. Gerry is very lazy. He sleeps and relaxes for 20 hours every day. Today is Gerry's eighth birthday. The workers in the zoo are having a birthday party for him. This is a big elephant. His name is Johnny. He is from India .He's eleven years old. He has bad eyesight .He likes to eat grass. He's friendly and clever. People can teach him to do things for them. Tuantuan is a cute panda. She is five years old. She's from China. She is very beautiful,but she's very shy,so please keep quiet. She likes eating bamboos and drinking water. She relaxes about 10 hours every day. Gerry is   _   years old.
5 7 8 11