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What can he say to us? 2. Where is your husband now? 3. Why are you breathing so hard? 4. How many students in UMI? 5. How much money is in the account of the Institute? 6. How often Mary and her sister come to visit parents in Greentown? 7. How long does it take for students to complete the test? 8. How often Lora late for work? 9. How did you hear the tenderness in his words? 10. What do you like to watch movies? 11.Kotorye your keys? 12. Which of the two evils? 13.Chey there is a beautiful scarf? 14. What books do you read on the program last year? 15. How long will the Browns family to prepare for the move? 16.Skolko years have you been together? 17. When the day of their marriage? 18. As so? 19. How much time do you have for me? 20. How much is it important? 21. When David returned to the office? 22. How far apart they live? 23. In a house of their new apartment? 24. To who do you turn to? 25. Who will start the report? 26. Which article are you reading now? 27. Whose there car parking? 28. When Michael should get tested? 29. How often have headaches Chris? 30.Pochemu you still awake? 31. How much energy in you in the evenings? 32. Which of the brothers in Moscow right now? 33. Who are you talking about coffee? 34. Who would like a slice of pizza?

1. "Carbon calculators" can help you to know how much CO2 is produced by you.
2. Almost one ton of CO2 per person may be produced during a flight across the Pacific Ocean.
3. That can be done by buying energy-efficient light bulbs, refrigerators, and other appliances. By installing solar panels, we can make homes and businesses greener.
4. It may be offsetted by walking, riding bicycles, and driving hybrid cars.
5. This article implies the need  of reducing CO2 levels in the atmosphere.
Because, otherwise it may lead to global warming.