【正确答案】 A

【答案解析】[解析] 本题考查主谓一致。either…or…作主语时要遵循邻近原则，即以后边的名词为准，所以答案为A。[知识拓展] 与其用法相同的还有：neither…nor…，there be。只不过there be要看be邻近的主语。如：Neither Lily nor Lucy goes to school on foot．There is a pen and two books on the desk．There are two books and a pen on the desk．