Question

The old man often looked back on the past days ________ he worked hard to make a living.

A．which B．when

C．where D．that

 

Answer 1

B

【解析】B　考查定语从句。句意：这个老人经常回顾他过去辛苦谋生的日子。分析句子成分可知，先行词为the past days，空处在定语从句中充当时间状语，故用when引导。