_______ it not for water, this world would be a lifeless place. ( )

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问题 _______ it not for water, this world would be a lifeless place. (    )

选项 A、Were
B、If
C、Was
D、Had

答案A

解析 本题为虚拟式,表达的是一种假设的状况,因此不管主语是第几人称,be动词只有were一种形式。同时本句还是省略if的倒装条件句,需要把be动词提前。答案为A。
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