The correct answers are 1. I enjoy visiting Chicago, where you can go to Millenium Park and 5. The baker was disappointed when they burned the muffin batch.
Explanation:
Pronouns include words such as they, we, I, etc. that represent a noun. Additionally, in sentences, there is a pronoun shift if the sentence starts with one pronoun, and then the pronoun is abruptly changed, which is considered an error.
This error can be seen in the sentence "I enjoy visiting Chicago, where you can go to Millenium Park" because the speaker uses the pronoun "I" (first-person pronoun) and then changes to "you" (second-person pronoun), and in the sentence "The baker was disappointed when they burned the muffin batch" because the pronoun "he" (the baker) is changed to "they."