Which pronoun would correctly fill in the blank? 'I have talked to your teachers and your bosses, and _____ think that you've been doing a great job.'

The correct pronoun to fill in the blank is "they." In the context of the sentence, the speaker has discussed the subject’s performance with both teachers and bosses, which implies that there are multiple people providing feedback. Since "teachers and bosses" refers to a group of individuals, using "they" appropriately captures the idea that these various people share a collective opinion.

Choosing "they" effectively indicates that the speaker is reporting the thoughts of this group regarding the subject's performance, making it clear that the acknowledgment of a job well done comes from more than one source. In this context, the subject is not speaking for themselves or addressing the listener directly, but rather representing the viewpoints of others.