63. You should build a good_____________ (关系)with all your neighbors.

64. I don’t care what it looks like –　what_____________ (重要)is　that it works.

65. Sam is an_____________ (patience) doctor. He always quarrels with his patients.

Sweeping city skies　 We always check the weather before a trip. But after hearing a lot about　air pollution .we often wonder: 　h　 66　 　will the air be tomorrow? 　 On Sept 1,　Forecasting　air　pollution　started to be on TV. There are six grades, with the first grade　meaning excellent air. The forecast helps us　plan trips, and helps the government make plans to stop air p　 67　 . China is making an e　 68　 　to　clean the air. Big cities such as Beijing and Shanghai are taking the air pollution seriously first. On Sept 2, Beijing said it will　reduce PM2.5　density　(密度) by at l　 69　 25 percent by 2017. How will the city make it　come t　 70　 ? Car　emissions　(排放物) is one of the main c　 71　 of PM2.5 in big cities, so fewer cars will be in Beijing next year. It is also　asking for congestion fees　(拥堵费) from car driving in the city center. There’s a lot of PM2.5 in waste gas(废气)from factories. Beijing will close some companies. If a company pollutes h　 72　 , it will have to buy water and electricity at a　h　 73　 price. In order to have more blue　s　 74　 , every one of us should also help. We can help by　taking buses i　 75　 of cars or taxies. We can　also help by giving up smoking.　 So from now on, take action and do your part.