4. What does Katniss do in the private training session that shocks the Gamemakers?
Why does she do it?

She shot the apple directly from the pigs mouth straight in front of the game makers, she did this as they were not paying attention to her and she was frustrated with their lack of care.

Explanation:

The apple was a part of the meal on the table in the game makers player study and the arrow flew straight passed the head game maker

studied

Explanation:

It is in past tense because it had already happened and it makes most sense.

Hope this helps. =D

Have a great day!