Various means of transportations (have) ______ been established. have本题中主语是means

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问题 Various means of transportations (have) ______ been established.

选项

答案 have

解析 本题中主语是means,意为“方式,方法”,其单复数形式相同,因此谓语动词要根据 means的具体含义来选择。由various可知,本题中所指的是多种方式,表示复数的概念,因此谓语动词要用复数形式have。
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