many a 作主语谓语动词单数复数

many a 作主语谓语动词单数复数 many a/an+可数名词单数作主语时,谓语动词用单数还是用复数? sheep作主语谓语动词用单数还是复数?Many sheep _____ eating grass.A.is B.are 1.much+不可数名词 作主语,谓语动词用单数还是复数?2.two/many pieces of+不可数名词 作主语,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? couple作主语时,谓语动词为单数还是复数? sunglasses作主语谓语动词用单数还复数 clothes 作主语,谓语动词用单数还是复数? no one 作主语,谓语动词用单数还是复数 the police作主语谓语动词用单数还是复数? several fish 作主语,谓语动词用单数还是复数? something 作主语 谓语动词用单数还是复数 police作主语时谓语动词用单数还是复数 children 作主语,谓语动词用单数还是复数 different means 作主语,谓语动词单数还是复数 socks作主语时,谓语动词用单数还是复数 请问：many a person做主语时,谓语动词用单数还是复数? a couple of 作主语时.谓语动词是用单数还是复数