选字填空。

（丰   王）____收       瓜____（子  籽）        一（定  订）____

降低大气中的二氧化碳的含量，应对温室效应带来的不利影响，是人类的共同责任．下列工程无助于降低大气中二氧化碳含量的是（　　）

Sarah: Hi, friends! My parents will have a birthday party for me.

Amy: Great! When is your birthday?

Sarah: It's on May 12th. It's my eleventh birthday. Will you come?

Amy: Yes！What about you, John?

John: What day is your birthday?

Sarah: It's Saturday. We have no classes.

John: OK. I'll come. Do you like sports?

Sarah: Yes, I do. I like playing football very much.

John: Good! I'll give you a surprising gift.