...history , enough at least , to survive in the world.答:第一题A and连接的两个或两个以上单数名词前若用each,every,no修饰,该名词短语作主语时,谓语动词用单数形式.例如:No book and no pen is found in the schoolbag.书包里没有书和钢笔.第二题A 不定代词one, every, each, everybody, everyone, one of, no one, nothing, nobody,none, ...