学进去

Sandy is only four years old. She usually goes to the park with her grandma.

One day, Sandy saw some birds ______ on the bench. She was very happy. She walked there and ______ after the birds. Then a park keeper came up. He pointed to a sign on the grass and said, “Can't you see the sign?” “What does it mean?”, asked Sandy. “It means you ______ walk on the grass. Fine (罚款) ten yuan.” “Oh, sir. I only put one ______ on the grass. So I can only give you ______ yuan.” The park keeper smiled and said, “OK. You're lovely. I won't fine you. Don't walk on the grass again.”