What do 'they'refer to in the extract?
Ans : 'they'refer to the refugees from Oklahoma in the extract.
Ans : 'They' refers to the refugees from Oklahoma.



The division of paragraphs is not followed.

Ans : 'They' refers to the refugees from Oklahoma.

If I understand what you are asking, then it is 'refers', not 'refer', because "they" is being used in the sense of 'the word they refers to...', and not with the usual plural meaning as in "They are coming to the party."