that 引导的定语从句

问题描述:

that 引导的定语从句
Although we had not met for 30years,I recognize him the minute ( )I saw him.A when B as C that D while 这个题为什么不可以选when呢?如果没有the的话是不是选when 也是正确的?

如果没有the minute选when是正确的,此时when引导的是时间状语从句