some baskets of orange(s) 用单数还是复数

some baskets of orange(s) 用单数还是复数 some friends of mine后面加单数还是复数? some of the children 是单数还是复数 some kind of 后接不可数名词时的谓语用单数还是复数 请问there is some piece of paper中be动词用单数还是复数 piece呢? one of neither of all of some of 加 them 是单数还是复数 have some difficulty 是用单数还是用复数 some people做主语,谓语动词用单数还是复数? some 做代词当主语,谓语用单数还是复数? some+不可数 谓语动词用单数还是复数? some vegetables 后的谓语动词用复数还是单数?、 1.some advice 后面谓语动词用单数还是复数