The Noh drama's main character must resolve his Inner conflict.
Answer:
1. The youth of today are less interested in the pursuit of pleasure than in academic work.
2. The pursuit of pleasure is of less interest to the youth of today than in academic work.
3. etc.
Explanation:
Depending on what you mean by "oppose", you can rewrite the sentence in a few different ways.
Sally is antecedent for herself
letter is an antecedent it
the antecedent is what the pronoun modify