Sprint 2 - Resolving Speaking Bedrock Issues

[Husain1771]

• To add sample exam
• Test feedback accuracy

[Husain1771]

• Added 1 missing audio file.
• Speaking test feedback turned out to be fine but it requires minimum 15 second audio per question in P1 and P3, and 1min 30 sec for P3. Therefore, changed to 1 second to speed up development process. REMEMBER TO CHANGE BACK!!