If 'if' was reality, how would history have changed?

He was arrested for the crime of second offense.

He always feels at ease when he has a talisman.

Even though he was tired, he continued to work.

Even though he must be tired, he is still working.

In chemistry class, I learned about the properties of elements using the periodic table.

The period of this project is one month.

This phenomenon occurs cyclically.

The circumpolar star is always visible in the north.

I will modify the article using this editor.