Which of the following sentences contains an incorrect pronoun shift?

Question

Avery and Jerry brought their dad a slice of cake from dinner.

Betsy was so excited to get her car back from the mechanic.

Joe’s grandfather broke his favorite plate in the dishwasher.

I thought I saw a dog bury their bone under the tree

Answer 1

The sentence that contains an incorrect pronoun shift is:

"I thought I saw a dog bury their bone under the tree."

The pronoun "their" is plural, while the noun "dog" is singular. A more consistent pronoun would be "its" to refer to the singular dog. The corrected sentence would read: "I thought I saw a dog bury its bone under the tree."