---I think ______ people drive, ______ air pollution there will be.---That’s true. I hope the air will be fresher soon.
Lisa spent all________day cleaning her room.
---how long__ your uncle____the countryside ? ---for nearly five years.
Jack has failed the game three times, but he doesn’t want to_____.
----who ____the money and food to the people in the earthquake? -----some young people from Beijing.
---I have been to Qingdao before. ----- .