What___on the desk?There___a dictionary,three books and a pencil-box on it.横线上选填is或are.

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What___on the desk?There___a dictionary,three books and a pencil-box on it.横线上选填is或are.

What___on the desk?There___a dictionary,three books and a pencil-box on it.横线上选填is或are.
What___on the desk?There___a dictionary,three books and a pencil-box on it.横线上选填is或are.

What___on the desk?There___a dictionary,three books and a pencil-box on it.横线上选填is或are.
两个都是is
因为问的人事先不知道桌上有 什么东西 . 所以第一个用is
因为there be 中be的单复数是根据其后最靠近的名词决定的,所以第二个用is

are is
请及时采纳,不懂继续问( 天天在线 )
(*^__^*) 祝学习进步! 谢谢!

两个都是IS