Question:
Batman caught the thief, and he plead innocence.

he
Answer:
the thief
Question:
The government wants to prohibit the people from playing chess on Monday because they have to work.

they
Answer:
the people
Question:
The government wants to prohibit the people from playing chess on Monday because they want Mondays to be more productive.

they
Answer:
The government
Question:
Rick Davis campaigned for John McCain since he was the best man for office.

he
Answer:
John McCain