Read the text and fill in the gaps with the correct form of verbs as per subject and context.

Most of the people who (a) _____ (appear) most often and most gloriously in the pages of history (b) _____ (be) great conquerors and generals and soldiers, whereas the people who really (c) _____ (help) civilization forward are often never (d) _____ (mention) at all. We do not know who first (e) _____ (set) a broken leg, or launched a sea worthy boat or (f) _____ (calculate) the length of a year, but we (g) _____ (know) all about the killers and destroyers. People think a great deal of them, so much so that on all the highest pillars in great cities of the world you (h) _____ (find) figures of a conqueror or a general or a soldier. And I think that most people (i) _____ (believe) that the greatest countries are those that (j) _____ (beat) in the battle the greatest number of countries and ruled over them as conquerors.