If there was no air, people would die.为什么不用were

If there was no air, people would die.为什么不用were __no gravity,there would be no air around the earth.A;If there was B;Were there咋选呀? 为什么选D ___no gravity,there would be no air around the eartha if there wasb was therec if there had been d were there 句型转换:People will die if there is no air and no water.People ()()()air()water. _no gravity,there would be no air around the earth.A;If there was B;Were there不可以用A吗? If there is no air and no water, we will die如何改同义句? 同意句 转换 We can't live if there is no air We can't live（）air 英语翻译The sails ,of course,did nothing unless there was wind ,but the wind would not blow if there were not a temperature difference that made cooler air move into the space vacated by the rising warm air.And there would be no warmer air unless 改为同义句：If there is no air,we will die. Man will die if there is no water or air,he said.改为间接引语 People can't live if there no water or air(改为同义句）. if there is no air people will die的同义句 Living things will die if there is no air or water等于什么 Nothing can live if there is no air or water.用without改写 None of us can live on the earth.There is no air.用if写句子 people can,t live if there is no air (保持原句意思)要理由 同义句转换：We can't live if there is no air. if there was no a_____or water ,there would be no living things on the earth.