Every man, woman and child ______ some history, enough at least,

Every man, woman and child ______ some history, enough at least, to survive in the world.
A、knows
B、know
C、is known
D、are known
【正确答案】：A
【题目解析】：主谓一致[句意] 所有的人，不管是男性还是女性，都要懂点历史，至少要足够维持他们在世上的生存，[解析] 主语中含有each，every时，谓语需用单数，所以选A)。