英语词类辨析There must be no life onthe Mars for _____ of air ther

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英语词类辨析
There must be no life onthe Mars for _____ of air there.
A .lack B.lacking C.short D .empty
为什么选A呢？

A,lack 在此为名词.意为：[必要物、所希望之物的] 缺乏,不足,缺少；词组for(from）lack of 意为：因为缺乏…；
B,lacking lack做不及物动词时的ing形式,有lack for sth或lack in的词组,没有for lacking的组合；
C,short 指暂时缺少的东西,例如：We are of food [hands,money].我们缺乏食物 [人手,钱]
D,emrty 指中空的物品,如empties,(口语)空箱,空瓶,空车 (等)

for there to be life there must be air and water ___there is no air or water ,there can be no life of any kin There is no life _____ (with) air or water. Were being boon for there must be air and water there is now considered to be no life on the Mars There _____sign of life on Mars. There was no air or water,there would be no life in the worl 1,（A ）no air or water,there would be no life in the world ______ no air or water,there would be no life in the world. （）no air or water,there would be no life in the world 高一英语填空题,1.There will be no ___________(pollute) on Mars.2.I sometimes life in the end there must be,no life in it up.