When my grandparents _____ the old time,they are very sad.

When my grandparents _____ the old time,they are very sad.
A、rediscover
B、remind
C、recognize
D、recall
【正确答案】：D
【题目解析】：本题考查动词词义辨析。A.rediscover：重新发现；B.remind：提醒，使想起。remind sb.of sth.:提醒某人某事，使某人想起某事；C.recognize：识别，认出；D.recall：回想起，回忆，召回。根据题意，“祖父母在忆起往日时光时，特别伤心。”D最合适。答案为D。