QUESTION:
The music player did not open the file because it was in the wrong format.
Who is "it"?

ANS:
the file

QUESTION:
Steven assassinated the president because he was a too liberal.
Who is "he"?

ANS:
the president

QUESTION:
Uncharted 3 did not introduce any new ideas since their last game, Uncharted 2, but it is still going to be a fun game.
Who is "it"?

ANS:
Uncharted 2

QUESTION:
The police captured the criminals because they were more prepared.
Who is "they"?

ANS:
The police