So open Google. Use the search strings provided. Find that pristine, 60-page PDF. Print it out. And start marking.
As of 2025, no dedicated HKDSE app offers the same flexibility as Google. Oxford University Press does not have a real-time answer key database. Therefore, the remains the fastest way to improve. So open Google
You can find digitised versions of the Set 6 answer keys on the following platforms: So open Google