It is on the road to the north of the town that a serious car accident happened the other day.这个

问题描述:

It is on the road to the north of the town that a serious car accident happened the other day.这个
子中is是不是应改为was呢?

不必,此句为强调句,强调当时发生事故的地点,这一地点为客观事实.