Question

There was a time ＿＿ Tom was interested in music.

There was a time ＿＿ Tom was interested in music. A．which B．on which C．what D．when

Answer 1

D

从句修饰time（名词），因此是定语从句，从句主干完整，time 在从句做时间状语，使用关系副词，因此填when 或during which, B选项介词不对。 点评：定语从句考查定语从句的考查关键在于定语从句的成分分析，如果缺少主语，宾语，表语，定语就使用关系代词，如果句子很完整，就使用关系副词。