IN:
Multi-choice problem: [he]

George talked to Bill because he had experience.

OUT:
Bill

IN:
Multi-choice problem: [they]

The robots tried to negotiate a cease-fire with the squirrel-men, but negotiations broke down when they sabotaged the acorn processing facility.

OUT:
The robots

IN:
Multi-choice problem: [she]

Ann helped Kim with her cooking skills, because she was unable to make rice.

OUT:
Kim

IN:
Multi-choice problem: [they]

Treasure hunters have to constantly fear running into bandits because they could be risking their lives if they encounter them.

OUT:
Treasure hunters