IN:
Multi-choice problem: [he]

The teacher told the student that he needed to practice.

OUT:
the student


IN:
Multi-choice problem: [they]

People like dogs because they look like them.

OUT:
dogs


IN:
Multi-choice problem: [he]

John chose Bill because he was the best choice.

OUT:
Bill


IN:
Multi-choice problem: [it]

The army crossed the river because it was retreating.

OUT:

The army