Mary is a three-year-old girl. One day, her parents can't find her in the house.
"Where is Mary? Is she in the garden?" asks Mrs Brown.
"Maybe you are right. Let's go to the garden," says Mr Brown.
When they come to the garden, they see Mary sitting under a tree.
"Hello, my name is Mary. Good morning. Nice to meet you here! I'm three years old now. I like green. What colour do you like?"
"Who are you talking to, Mary?" ask Mr and Mrs Brown.
"I'm talking to my friends," Mary says.
Who is Mary talking to? Do you know? She is talking to some ants(蚂蚁) under the tree. What a lovely girl Mary is!