How should a Catholic answer, "Have you been saved?"
The short answer
Answer as the Bible does: I have been saved, I am being saved, and I hope to be saved, working out my salvation in fear and trembling with confident hope in Christ's promises.
Catholic Answers' tract Assurance of Salvation? suggests this reply:
"As the Bible says, I am already saved (Romans 8:24; Ephesians 2:5-8), but I am also being saved (1 Corinthians 1:18; 2 Corinthians 2:15; Philippians 2:12), and I have the hope that I will be saved (Romans 5:9-10; 1 Corinthians 3:12-15). Like the apostle Paul, I am working out my salvation in fear and trembling (Philippians 2:12), with hopeful confidence in the promises of Christ (Romans 5:2; 2 Timothy 2:11-13)."