Seven out of ten 是单数还是复数

Seven out of ten 是单数还是复数 十分之一是 one out of ten 还是 one in ten?他们的谓语动词是单数还是复数? ten minutes是单数还是复数? a few of是单数还是复数 None of us是单数还是复数 cartons of milk是复数还是单数 half of population是单数还是复数 Either of **和 neither of **是单数还是复数? another ten students后面的动词是用单数还是复数?thanks the boys of Class One是单数还是复数? a bag of potatoes 是算单数还是复数? this pair of shoes 是单数还是复数?