单选题When I met him the&n

问题补充：

单选题WhenImethimtheotherday,itwasthefirsttimewe____eachothersincewewereatschool.A.sawB.hadseenC.wereseeingD.haveseen

答案：

B解析考查固定结构。it was the first time (that) sb had done sth,某人第一次做某事。所以选B。