What has puzzled the scientists most is that a slight change in its environment ____ have pushed the rare species over the edge into extinction.A.should B.shall C.would D.will

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What has puzzled the scientists most is that a slight change in its environment ____ have pushed the rare species over the edge into extinction.A.should B.shall C.would D.will
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What has puzzled the scientists most is that a slight change in its environment ____ have pushed the rare species over the edge into extinction.A.should B.shall C.would D.will
What has puzzled the scientists most is that a slight change in its environment ____ have pushed the rare species over the edge into extinction.
A.should B.shall C.would D.will

What has puzzled the scientists most is that a slight change in its environment ____ have pushed the rare species over the edge into extinction.A.should B.shall C.would D.will
A
表示“不理解” 意为“竟然会.”

kkk

选A,这里的should表示一种惊讶的语气
望采纳谢谢,顺祝您学习进步

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