在复合句中修饰名词或代词的从句叫定语从句。被修饰的名词或代词叫先行词。引导定语从句的关系代词有who, whom, whose, which, that等和关系副词where, when ,why等。关系代词和关系副词在定语从句中担任句子成分。
●难点磁场
1.(★★★★)—I drove to Zhuhai for the air show last week.
—Is that the reason ________you had a few days off?
A. why B. when C. what D. where
