Water and air are _______ to human beings.We can not live without them.A.harbourB.functionC.definiteD.essential

Air,food and water are indispensable to life.翻译中文! 英语二选一选择题.Air and water ( ) important.【is；are】 Air,food and water are ( ) for life.(need)求解 there are air and water on the Earth.为什么要用are 为什么there is air polluttion,water pollution and land pollution.用的是is,而There are air and water on the Earth.用的是are? There are air and water on the Earth.air不可数,There be遵循就近原则,为什么不用is Rice,air and water ( )all important for us is or are Water and air ( ) important.A.has B.is C.have D.are 14. Air and water are ____________ to life. A. preferable B. irreplaceable C. acceptable D. indispe We are c___Earth,the land,the air and the water.首字母填空 ---- air and water are very important for us.A.A B.An C.The D./ the air and water are important ___us填什么介词呢? 用is或are填空Both water and air ( ) important to our lives. you are my earth air water people cannot ( ) without air and water.(live) water and air keep us______(live) There are air and water on the Earth.There be句型有就近原则,为什么还用are 英语翻译Ten little ducklingsTen little ducklings,Swimming here and there.Heads are in the water,Tails are in the air.