Read the sentence. No one could believe their luck when the owner of the restaurant offered free dessert to all. What is the agr
eement error in this sentence? The pronoun “their” does not match its antecedent in number. The pronoun “their” does not match its antecedent in person. The pronoun “their” does not match its antecedent in case or number. The pronoun “their” does not match its antecedent in number or person.
The answer to your question would be that the agreement error in the sentence is the following one: The pronoun "their" does not match its antecedent in number, which is "no one" (singular).
The sentence above is a clear example of the use of <em>singular they.</em> <em>Singular they </em>is the use in English of the pronoun <em>they</em> or any of its derivative forms (them, their, theirs, and themselves) as a gender-neutral singular pronoun. This use of the pronoun <em>they</em> typically occurs with an unspecified antecedent, such as "No one".
I never read this book but try thinking about your own life and scan through the book and try to find a connection ( if thats what your asking, Like if a charecter likes to read books just say you like to read books too.... i dont know I never heard of this book sorry!