The manager or his assistant ( ) planning to go.答案是is.但我还是不知道看or还是...The manager or his assistant ( ) planning to go.答案是is.但我还是不知道看or还是看manager 或assistant是单数才选is.即：The manager or there assistants ( )
网友回答
毗邻原则,最近的是单数就用is,是复数就用are
======以下答案可供参考======
供参考答案1:
这里the manager or his assistant就相当于either the manager or his assistant
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供参考答案2:
看后面那个，
ARE 还是 ARE