In a sentence which says thay something “stood at the centre” is centre an adverb of place?

Which of the following pronouns are singular

You're playing the slots and "win" twenty-five bucks! you're stoked. during the past ten weeks, you've won another fifty bucks. but you've dropped two bucks in the slot machines every day for ten weeks

Identify and evaluate the specific strategies used to persuade the audience in gettysburg address