Question

【题目】Everyone has periods in their lives________ everything seems very hard.

A．when B．where C．which D．That

Answer 1

【答案】A

【解析】

试题分析：考查关系词。句意：每个人都有过这样一段时光：好像每件事都看起来很糟糕。When时间副词，指代前面的period（时期），故选A项。