waste gas is _____(harm) to the environment

waste gas is _____(harm) to the environment waste gas is flared or vented 怎么翻译? nerve-gas waste 怎么翻译? The waste gas and water (are)poured into the .( )里是is还是are? Gas is cheaper than electricity.句型改变改变句型Gas is cheaper than electricity.（保持句意不变）Electricity ____ _____ than gas. The gas is off the gas is 翻译Factories should pour as little waste gas as possible Cars pollute the air in the form of ------(waste) gas. how heavy is hydrogen gas Fall is a h _____ season Thirdly,cars may give out lots of waste gas and the gas can cause air pollution.也翻译成中文 We should stop factories from pouring waste water into the river and waste gas into the air.翻译汉 Cars pollute the air in the form of ------(waste) gas.请问横线上应该填waste的什么形式 gas gas 初中英语一道单项选择it smells terriible.what has happended here?there is much waste gas ( )from the chemical factoryA. pouring B.pouredthere前面还有一个look。不知道有没有影响 we must not waste _____ food ____drink