1. We dropped him hints the entire evening, but he didn't ______ any of them.

2. Ever since the accident, she has become very emotionally ______.

3. The band quickly became a/an ______ phenomenon, selling out stadiums worldwide.

4. He was a model student, ______ taking notes in class and completing his assignments promptly.

5. Despite being very ill, she had no choice but to ______ and finish the project.