a large quantity of fish 谓语怎么用?单数还是复数?答案上是单数 我想不通...fish不是单复

a large quantity of fish 谓语怎么用?单数还是复数?答案上是单数 我想不通...fish不是单复 a large quantity of +复数名词(可数) 谓语动词是用单数形式还是复数形式 a large quantity of+可数名词复数 后面的谓语动词用单数还是复数 a large quantity of 后面的谓语动词用单数还是复数? a large quantity of 后接名词的复数形式,谓语动词应用单数还是复数 several fish 作主语,谓语动词用单数还是复数? a quantity of +可数名词复数,谓语动词用单数还是复数? a large quantity of +N.跟动词单数还是复数?还有large quantities of呢? a large quantity of ,large quantities of后面加n．的复数还是单数? a large number of和 large numbers of 后面的谓语动词用单数还是复数 fish这个词是单数还是复数 chicken.fish.是复数还是单数?什么时候是单什么时候是复?