单选题 --Is your mother of the same age as your father?--No, my father is S years ______ my mother.
【正确答案】 B
【答案解析】从上下两句语意“父母亲年龄不一样大”判断A项为错误的,C中的older应与 than连用,形容词senior(有junior,superior)后用to构成的比较级。