northwind Why does the starter uses use mark*s*, not mark? You'll have to ask him. You have already thought of two good reasons, and maybe it was one of those reasons.
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northwindWhy does the starterYou'll have to ask him. You have already thought of two good reasons, and maybe it was one of those reasons. We don't know what is inside somebody else's head when they speak, so I don't think we can even guess at some exact reason for this word choice.usesuse mark*s*, not mark?
northwindBut for some reason, probably by misunderstanding, 'marks' is sometimes used.I think that the simplest explanation is that each competitor has his own mark (beginning point), so there is more than one mark. Even so, by some arbitrary convention not observed by this particular speaker, we normally say "On your mark" as a fixed expression no matter ho