I __ meet my old classmate in the street the day before yesterday.A.had B.happened to C.used to
问题描述：
I __ meet my old classmate in the street the day before yesterday.A.had B.happened to C.used to
答
个人答案 BA.如果选had想表达的应是过去完成时,但meet为现在时,未变为过去分词,而且就语意而言,用过去完成时应为“过去的过去”,此处无过去动作参照,表明遇见同学是此事之前的是B.happened to 意为“碰巧”,此处合适...