When and where to build the new factory___A___yet.A.is not decided B.are not decided

问题描述:

When and where to build the new factory___A___yet.A.is not decided B.are not decided
这里是时间和地点没有确定,为什么不用are,而用is呢

When and where to build the new factory这是一个整体,所以谓语动词用is,意为:什么时候在哪里建造一个新工厂仍然没有决定