Question:
The police arrested the criminals since they enforce the law.

they
Answer:
The police
Question:
Heath Ledger was considered the greatest Joker of all time by Ebert, but he cannot make that decision for all critics.

he
Answer:
Ebert
Question:
Shawn hit Joe but he did not apologize.

he
Answer:
Shawn
Question:
The nurse gave the girl a lollypop so that she would stop crying.

she
Answer:
the girl