What is okonkwo’s primary motivation in achebe’s things fall apart?

Likely Okonkwo's biggest motivation is that of trying not to be seen as his father was, a weakling or a failure.  This drives him to work incredibly hard, to fight like a lion and acquire two titles and become the veritable big man on campus in Umuofia.  It also contributes to what is likely his biggest flaw, his single-mindedness combined with a wicked temper.

He is unable to think outside the bounds of Igbo culture.

I hope it helps :)

i think the anti-race spokesman is working to achieve equality between whites and blacks and to encourage blacks to shakespeare's theory

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."