It doesn't matter whether you turn right or left at the crossing-both roads leads to the park.

问题描述:

It doesn't matter whether you turn right or left at the crossing-both roads leads to the park.
这里的whether...or引导的是主语从句还是让步状语从句?

主语从句.因为主句中的it是形式主语.whether...or引导的从句是真正的主语.