What is the order of first, then, last , and next

The correct order of first, then, last and next:

Well, think about it: First means, well, first - in the beginning. So we can leave first where it's at.

Now, where do you think last would go? In the back, right?

Wait a minute! We're not finished yet!

Just switch the then and next so that they're in opposite places:

Your words should now look like this -

First, next, then, last --

I'll give you an example using all these words in a tiny paragraph.

First, Mary went to the store.

Next, when she got there, she bought a gallon of milk.

Then, she left the store.

Last, she arrived home and drank some of her milk.

↑   ↑   ↑  Hope this helps! :D

assuming the underlined word is "regnant", the correct answer is b) ruling.