当what , which , that , where , in which 作引导词时应该怎答:在这种从句中,which可以作主语,也可以作宾语或表语,多数情况下意思是与and this 相似,例如: He succeeded in the competition, which made his parents very happy. 三、 关系副词引导的定语从句 关系副词可代替的先行词是时间、地点或理由的名词,在从句中作状语。 1)when, where, why 关系副词when, ...