____ no doubt among the students that water isn't enough for all the people in theworld.A. There has had B.They have C. It exist D.There exists

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____ no doubt among the students that water isn't enough for all the people in theworld.A. There has had B.They have C. It exist D.There exists
____ no doubt among the students that water isn't enough for all the people in the
world.
A. There has had B.They have C. It exist D.There exists

____ no doubt among the students that water isn't enough for all the people in theworld.A. There has had B.They have C. It exist D.There exists
D
这是There is no doubt that.句型,意即“毫无疑问.”
此句用了表存在概念的exists 代替了be 动词 is
请在客户端右上角评价点“满意”即可,

A. There has had 现在完成时表示于现在有关
毫无疑问。。。。

D
There be 的变体,be 可以用live stand ,exist 等代替。