With an appropriate relative adverb: (1)He has left Beijing,____

With an appropriate relative adverb:
(1)He has left Beijing,____ a meeting is to be held. (2)1990 is the year ____ he was born.
【正确答案】：where;when
【题目解析】：【考点点击】本题考查定语从句的关系副词。【要点透析】关系副词when用来指时间,where指地点,why指原因,它们在定语从句中均用作状语。由第一句中的 Beijing和第二句中的year可知,第一个空填 where,第二个空填when。