one or perhaps more pages missing.A.is B are C has been D have been

问题描述:

one or perhaps more pages missing.A.is B are C has been D have been
为什么啊

选D.
one or more+名词,谓语动词的形式由more后面的名词单复数决定 我们习惯上称它为就近原则,离着谁近由谁决定