Answer:
i dont know i need answer
We use pronouns so that...
we are not repetitive.
they can provide variety.
they can provide an economy of words.
I think its the last one but im really not 100% sure. Hope It helped.
The passage is centered on the theme of belonging in a certain pack or group. Buck may be a bit different from the others but as Buck tried to be like them and did what they usually do, it gathered the trust of the pack especially the leaders. To belong in a group, one should gain their trust.
