The first sentence has correct pronoun and antecedent agreement:
• While the neighbors were walking to the store, they dropped their money and the wind blew it away.
In this sentence, "they" correctly refers to "the neighbors," and the pronouns maintain consistency.
The other sentences have issues with pronoun-antecedent agreement:
- In the second sentence, "she" incorrectly refers to "the teachers" (which is plural).
- In the third sentence, "it" is vague and could refer to "the weather" or something else, making it less clear.
- In the fourth sentence, "he" incorrectly refers to "the brothers" (which is plural).