【正确答案】[范文]
July 20, Sunday Fine
Today I went to the park with my parents. I happened to meet some American visitors. I went up to them and said, "How are you?" Hearing my words, they looked very surprised. I didn't know why. When we got home, I phoned my English teacher to tell her about that. She told me the reason and then I knew I was wrong. I have understood that how important it is to learn how to use English.