Human being have thirty-three or thirty-four vertebrae, but a snake may have as

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问题 Human being have thirty-three or thirty-four vertebrae, but a snake may have as many as three hundred.

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答案 being--beings

解析译文：人类有33或者34根椎骨，但蛇可能有多达300根椎骨。
分析：考查数的一致。谓语动词为have，且Human being前并没有表示单数的不定冠词a，说明主语不是第三人称单数而是复数，应改为beings。

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