问题 选择题

It is human nature to think back to a golden age ______ one’s country was strong and respected.

A.if

B.when

C.while

D.after

答案

答案:B

此句是对定语从句的考查,先行词为表示时间的词,且在从句中作状语,所以选when

判断题
单项选择题