Each of them has/have a book.句中的谓语动词到底要用单数还是复数?还是单复数都可以用?

Neither of them 后谓语动词用单数还是复数, a corps of (people)词组后面的谓语动词用单数复数?还是都可以? 请问a pair of在句中的谓语动词是用单数还是复数? a pair of pants谓语动词用单数还是复数? neither of them 还有none of them 后面的谓语动词用单数还是复数 英语语法问题：people each谓语动词用单数还是复数? each means做主语,谓语动词用单数还是复数 each family 谓语用单数还是复数 one of them 谓语动词单数还是复数 each of them算单数还是复数 a list of ,a line of后面可不可以加单数,谓语动词用单数还是复数 A series of +复数名词.作主语时,谓语动词用单数还是用复数?为什么?