【题目】There was a time ________ the boy often quarreled with his parents.
A.which
B.when
C.that
D.where

【答案】B
【解析】考查定语从句。a time指时间，在定语从句中做时间状语，句意：有一段时间，那个男孩经常和他的父母吵架。故选B。