I had nearly reached the town,when the young man suddenly saidwhen 引导的是什么句型

问题描述:

I had nearly reached the town,when the young man suddenly said
when 引导的是什么句型

早忘记了
时间状语从句

时间状语从句

时间状语从句:表示当……时.
意思是:当这个年轻人说……时,我已经到达了城镇.