Sarah: Hi, friends! Would you like to come to my birthday party?
Amy: Great! When is your birthday?
Sarah: It's on May 12th. It's my tenth birthday. Will you come?
Amy: Yes, I will. What about you, John?
John: What day is it?
Sarah: It's Saturday. We have no classes.
John: OK, I'll come. Do you like sports?
Sarah: Yes, I do.
John: Good! I'll give you a surprising gift(令人惊喜的礼物).