______trees we plant, ______ our Mother Earth will be.

- What’s the low-carbon (低碳) style life like? - Save _____ energy, produce _____ carbon.

I can hardly hear you because it’s too noisy here. Please speak _______ .                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

---Ann, I’m worried I’m getting fatter. What shall I do?---I think you should eat          food and do more exercise.

—Today is the _____ day in my life, because I won the first prize in the competition. —Congratulation!