Answer:
ours, theirs, ours
Explanation:
it should make sense if the rest of the sentence is past tentse then the word should be used as past tense or eother present tense vice versa.
Answer:

According to blank slate theory, the mind is completely blank at birth. From there, education, environment, and experiences – which are external, as well as material and/or immaterial – shape the child's process of development. This leaves a lasting effect on who they become.
What strategy lies behind the use of this quotation? B. Using a quotation by this respected president would link Jordan's words to the much revered President Lincoln's words in the minds of the listeners, giving her credibility. The quotation gives her speech validity.
(...) Well I am going to close my speech by quoting a Republican President and I ask you that as you listen to these words of Abraham Lincoln, relate them to the concept of a national community in which every last one of us participates:
"As I would not be a slave, so I would not be a master." This -- This -- "This expresses my idea of Democracy. Whatever differs from this, to the extent of the difference, is no Democracy."
<em>Barbara Jordan was a politician (feminist) and leader of the black civil rights movement in the United States.</em>