Ensure the "Part-3" corresponds to the specific module or paper number you need (e.g., Paper 3 for a specific language or science subject).
Search on regional or national exam portals (such as Scribd for HKDSE materials or similar repositories) using the full string "Part-3 mmsking". Part-3 (mmsking)zip
Hkdsee 2012 M2 MS | PDF - Scribd