阅读短文，补全句子。
Now, Billy, Sue and Sandy are standing near the lions'cage. A big lion is sitting in it, but he isn't looking
at the children.
"Look at his tail," Sue says.
"Pull the tail, Billy," Saridy says.
"Watch me," Billy says.
Now the lion is looking at them. He is opening his mouth. "I think he's saying "Don't pull my tail, or I can
eat two boys for my breakfast." Sue says.
"Oh, let's go. Let's go over there." Sandy says. "There are some birds in the cage."
1. The children are looking at a .
2. A big lion is in it's cage.
3. Billy pulls the lion's .
4. The lion is angry and he is his mouth.
5. The children will go to the cage.
