two three- year -old girl 的谓语动词用is还是are?

问题描述:

two three- year -old girl 的谓语动词用is还是are?

are
因为谓语要跟主语保持一致,主语是two girls,为复数形式,故用 are.
这里的three-year-old(3岁的)只是个修饰定语