单项选择题
A．Landfill is now the main approach to waste disposal. B．The man’s factory has begun to burn its waste. C．Burning waste will do more harm to the environment. D．The government is going to stop the use of landfill.
A．The government. B．The local authority. C．The builder of the bridge. D．He didn’t mention it.
A．The residents’ need. B．The total number of buses. C．Rush hour traffic. D．The difference among local districts.