The answer is the final option. That would be the correct tense. Hope it helps! :) :)
Answer:
i think that it might be the firts one. hope this helps
Explanation:
I had to do this before you should just do your essay and do the best you can. Look back at your book and see what you do
The purpose of using sequential steps in "Fitting your Bike's Helmet" is to inform the reader about the correct way of fitting the previous mentioned item. In a text of these characteristics it is very important to give the information in a sequenced way because we cannot get the same result if we alter the steps.