You will see a sentence and a given pronoun. Answer with the word in the sentence to which the pronoun is referring.

Let me give you an example: this book introduced shakespeare to ovid; it was a fine selection of his writing.
The answer to this example can be: his writing
Here is why: in this statement the pronoun is his and his writing is referring to the quote in the sentence using the pronoun

OK. solve this:
text: bob paid for charlie's college education, but now charlie acts as though it never happened. he is very ungrateful.; pronoun: he
Answer:
charlie