The pronouns that correct the pronoun shift in these sentences are "I", "he", and "they".
As it can be inferred, a pronoun shift occurs when the pronoun of a sentence is suddenly changed. This is a common grammar mistake that can make the meaning of a sentence to be unclear of confusing.
The best way is to use the same pronoun that was previously used before.
Learn more about pronouns in: https://brainly.com/question/16548443
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